I was planning to switch to 4166 for my .308, but it seems that it has also become nearly impossible to source. OK, we're down to 1/3 MOA with a bit more to go. Most powders arent specially formulated to be temperature stable. For this reason, the IMR brand powders truly are Legendary products. IMR offers a modern line of powders with Enduron Technology which is also marketed to have extreme temperature stability. Between 1/3 and 1/2 MOA for 5 shot groups at 200yd. Find load data for IMR 4895 propellant by clicking the button "Loads for this Powder".More about this powder:Originally a military powder featured in the 30-06, IMR 4895 is extremely versatile as a medium burn speed propellant. Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR End. First, these powders all feature chemistry that reduces copper fouling. The Hodgdon powder company is world renowned for introducing revolutionary technology to the reloader. I can imagine you might have a little more difficulty with case volume and fill ratio due to kernel size. The kid's rifle didn't like this powder, but perhaps yours may. so I am thinking till powder does come available, load one or 2 levels under Max for a 223 into the 556 cases. Share the post "Powder Valley has new IMR 4166 Powder in Stock". Has anyone left switched from 4064 to 4166 without losing accuracy? 4451 is the medium burning powder, for medium cartridges like the .30-06 Springfield and the .270 Winchester. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. I'm using this in my Tikka CTR 223 under 73 gr Berger BT target bullets. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; It is available right now at Midsouth Shooters and Powder Valley in both one-pound and 8-pound containers: For more information and LOAD DATA visit IMRpowder.com and navigate to the Hodgdon Reloading Center. . Other than that , great job, thanks. IMR 7977 is a slower burn rate in the Enduron family. The 6.5 responded well to the precisely weighed powder charges in carefully prepared cases. View Product Warning DEALER LOCATOR This is a true magnum propellant yielding outstanding performance in 6.5-300 Weatherby, 264 Win Mag, 28 Nosler and 300 Rem Ultra Mag, among other cartridges. The IMR series of handloading powders were the only choice to wring full performance out of rifle calibers. Menu & Links Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. Thread starter cornhusker; Start date Sep 18, 2017; Forums. Was looking for an equivalent powder from H4895 when I ran into the 4166. ga.src = ('https:' == document.location.protocol ? Whether a rifle is sighted in during the heat of summer, hunted in a November snowstorm or hunting multiple locations with drastic temperature swings, point of impact with ammunition loaded with Enduron technology will be very consistent. Thanks, T.B. Share the post "Guide to IMR Enduron Powders: 4166, 4451, 4955, 7977, 8933". 17 reviews. Tried their 7977 in a magnum rifle and it had same accuracy as H1000. For info on other IMR powders, visit www.imrpowder.com. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. Expensive compared to varget. It is an extruded powder and provides top performance for big game cartridges like 25-06, 270 Winchester, 280 Remington and 300 Win Mag, among other cartridges. I've had good luck with 8208 with 77gr SMK's and 69gr Nosler Competition Customs Hoon Rating - 100% 1 0 0 Joined Mar 2, 2013 Messages This included the top-of-the-line Prometheus Gen II Powder Scale, which is capable of loading to the nearest kernel of powder. IMR 4166 Enduron Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. At the 2015 Shot Show they did just that and released the IMR Enduron Line. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Fired from My Rock River Arms National Match upper, these rounds consistently fetch accuracy in the .75 to 1.25 MOA area. Reloading 223 Rem./5.56mm is mostly the usual routine. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Loading density is perfect for magnums, contributing to superb uniformity. $40.99 - $270.99. 3, e-mail Hornady and the powder mfg. Temperature change stability the Enduron line is insensitive to temperature changes. Sounds familiar! Very consistent velocity, quality powder, not so good on powder throw due to it being a stick powder. It was less accurate than 4 other powders. of 4166 in Peterson SRP brass topped with 168 gr SMK's seated 0.010" off gave me great performance. It may be that if I did more load development I could close the gap. IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. For a better experience, please enable JavaScript in your browser before proceeding. Find load data for IMR TrailBoss propellant by clicking the button "Loads for this Powder".More about this powder:Find load data for Accurate 5770 propellant by clicking the button "Loads for this Powder".More about this powder:Trail Boss was designed specifically for low-velocity lead bullets suitable for Cowboy Action shooting. However, due to the super short kernels, metering is virtually as good as a spherical powder. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. The folks at PrecisionRifleBlog.com meticulously loaded 6.547 Lapua ammo with each powder using some of the best equipment available. Really like this powder, the accuracy it produces is amazing I will lots more if I can find it. This is a true magnum propellant yielding outstanding performance in 6.5-300 Weatherby, .264 Win Mag, 28 Nosler and .300 Rem Ultra Mag, among other cartridges. bolt reload data with 65gr. VISIT THE RDC WHITE HOTS White Hots 50/50 is a 50 Caliber, 50 grain pellet for muzzleloaders. Reduced Rifle Loads. DuPont had historically been a major supplier of military propellants long before becoming one of the handloaders favorite powders. Such loads are marked with an asterisk in the data to show where standard 7828 will not fit. They list loads for Sperry SP and Barnes TTSX in 55gr weights. 5 rounds shot Shooters will find IMR 8208 XBR yields max velocities and 'tack driving' accuracy. .1 to .2 gr accuracy. Hodgdon Extreme Series powders have attracted quite a fan base, with over 90% of the top shooters in the Precision Rifle Series choosing to run one of those powders. (5.56 x 45 NATO) .223 WSSM .224 Valkyrie .224 Weath. Whether youre reloading for the first time or an experienced reloader who desires elite powder, IMR is a company that should be on your radar. Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Enduron powders are formulated to reduce fouling and to be stable across a wide temperature range. This helps attain low ES/SD in velocity and pressure, which translates to improved long-range accuracy and tight verticals. (function() { IMR 4451 Another new Enduron powder that gives top performance in the venerable .30-06, 270 Winchester, and 300 Winchester Short Magnum, to name just a few. PRBs test team also noticed other interesting trends in the data. The same increase in temperature also causes the nitrocellulose-based powder inside the cartridge to burn at a higher rate, producing approximately four times the Point of Impact (POI) shift than just air temperature alone. Case: Winchester; Twist: 1:12 inches; Primer: Federal 210M, Large Rifle Match; Barrel Length: 24 inches; Trim Length: 2.005 inches. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. IMR is bringing out a new series of advanced-formulation extruded powders. Finally, Enduron powders are environmentally-friendly, crafted from raw materials that are not harmful to the environment. In another study, IMR 4166 was identified as the best replacement for Varget between 61F and 103F for .308 F-TR rifles. The 223 is the most common round. Address: xxl-reloading.com, Gartenweg 9, 83661 Lenggries, Germany. (SEE: Temperature Effects On Zero on KestrelMeters.com.). Posted by Christopher Brown on Apr 19th 2022. I paid $159.00 for 8# Varget at Shooters last time I was up there. This is an all-new extruded powder with a burn rate similar to Hodgdon Varget. That is very, very low. This demand lead to an incredible 2.5 billion pounds of smokeless propellants being manufactured by DuPont for Allied Forces in World War II. IMR recently released a new line of powders with Enduron Technology which is also marketed to have extreme temperature stability. Average extreme velocity spread was only 19 fps for 15 Sierra 142-grain MatchKing bullets fired from prepared cases filled with precisely weighed IMR-4166 charges. I loaded 23.5 gr in Lapua brass with no trouble using a 10" drop tube: http://www.xxicsi.com/powder-funnel.html It is available right now at Powder Valley in both one-pound ($25.45) and 8-pound ($182.75) containers: IMR4166-01: IMR 4166 1 LB. _gaq.push(['_trackPageview']); Optimal load density - Enduron powders provide optimal load density, assisting in maintaining low standard deviations in velocity and pressure, a key feature for top accuracy. Some of our Forum members have reported excellent results with IMR 4166 in cartridges that work with Varget, such as the 6mmBR, 6 Dasher, 6.547 Lapua, and .308 Win. In addition, it is a longtime favorite of Match shooters. Hodgdon Powder Co., distributors of Hodgdon, IMR, and Winchester powders, says that: The new IMR Enduron Technology powders will be available at dealers in early 2015 in 1-pound and 8-pound containers. For more information and Enduron LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. No reviews found. The new line of IMR Enduron powders feature small kernels for easy metering, plus a built-in copper fouling eliminator. Was able to find a node fairly quickly and with a little seating adjustment, it's shooting .3 moa or better. Please help us to improve and report any suggestions via our contact form. This powder is comparable to Hodgdon H4831. An acronym for. Hodgdon's excellent online reloading data show only IMR 4007SSC, IMR 4166, IMR 8208XBR, and Hodgdon CFE 223 breaking 3,750 fps with a 55-grain bullet in a 24-inch test barrel. Precision shooters will find an Enduron option well-suited to most popular precision cartridge types. Being a short-grain extruded powder it can be dumped from a powder measure; however I always opt to use a dispenser like the Hornady Auto charge. We do not take backorders and our Tech Services team cannot take orders via email or phone. I use in 243 Win and 6.5 CM. Working up a good hunting load with the 4166 Enduron and the Hornaday 150 gr GMX bullets for my 308. I went to the IMR site and it takes you to hodgdon's loading site. Thats because a change in temperature can affect the trajectory or flight path of the bullet in two well-known ways: 1. These are the first groups with this powder. Past breakthroughs have brought us the extreme extruded line that gives consistent performance regardless of ambient temperature, and more recently they have brought us CFE technology that deters and reduces copper fouling. Clean and inspect the cases, lube and full-length resize/decap, clean, and inspect them again. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. Select 223 Remington, check off your weights, select IMR, then 4166 I was able ti find a load for two different 55s, a 69, and a 75. ), AR Issue 2022 Gun & Gear Giveaway Contest, Editors Choice Gun & Gear Giveaway Contest, Fall Hunting 2021 Gear & Giveaway Contest, Defensive Handgun Gun & Gear Giveaway Contest, Defensive Handgun Issue Gun & Gear Giveaway, The Hunter to the Hunted: Savage Arms Introduces New 110 Carbon, Wilson Combat 300 HAMR Barrel Conversion, 2022 Editors Choice Award Winning SIG Sauer P322 .22LR, 2022 Editors Choice Award Winning Savage Mo. This ensured the powder charges were identical for each round of ammo. Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. These short-grain, extruded powders will deliver temperature insensitive quality while keeping copper residue to a minimum. Loading density is perfect for magnums. Then Try IMR 4166 Powder", A couple seasons back, PrecisionRifleBlog.com (PRB) published a significant field test of powder temperature stability. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. Its a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; Bullets ranged from 50- 77 grain , same bullets shot very well with Varget anf H4895 . Varget was always my go-to powder for .308 and .223, but anyone who reloads knows that Varget is virtually unobtainable now. Weve been quite pleased with IMR 8208 XBR as a Varget alternative. .223 Remington (Hodgdon Data Using IMR Powder) reloading data with 221 loads. Importantly, it seems to be a good substitute for unobtanium Varget powder. If you enjoy the forum please consider supporting it by signing up for aNES Membership The benefits pay for the membership many times over. 7977 is the slowest of the batch, for shoulder thumpers like the .338 Lapua and the .470 Nitro Express. For example, IMR 4166 is a good replacement for Hodgdon Varget (commonly used in the .223 Rem, 6mmBR and .308 Win), while IMR 4955 is a fine substitute for H4831 (favored by F-Open shooters for the .284 Win and 7mm WSM cartridges). Anyone seen/tried this combo? Every week of WW II, as many munitions were used as in all of WW I. Comprehensive load data for IMR 4166 Enduron reloading powder und technical specifications for this propellant. IMR 7977 performs comparably to Hodgdon H1000 but charge weights are materially different. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. Love the copper fouling eliminator makes cleaning a breeze, Posted by Paul rosenkranz on Nov 9th 2021. So if your goal is first-shot hits and you may shoot in a variety of conditions you should care about temperature stable powders. IMR states that IMR 4166 is a versatile, match grade propellant. The illuminated reticle made it very easy to see on the black target, and honestly was the first time I have ever had used the feature (now it may be hard to go back). It is also outstanding in cartridges like the 444 Marlin and 7.62 X 39. Once they had a couple dozen rounds loaded with each powder, they went and shot them with each powder at 25 F, 65 F, and 140 F. The muzzle velocity of each shot was recorded using BOTH a LabRadar Doppler Radar and a MagnetoSpeed Chronograph. I have had good luck with 4166 in .223 bolt rifles. First used in battle in 1805 by United States naval forces against pirates off the coast of Algiers, DuPont supplied more than 80% of Allied Forces powder needs in World War I. I much prefer IMR 8208 XBR for the 223. flyfisher117 Professional Milk Jug Hunter. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. I did the usual load development testing and found that 43.0 gr. I shot a 4.125", 10-shot group at 600 yds - well under 1 MOA and slightly better than my Varget loads, although they were close enough that I attribute the difference to the shooter. I'm very happy with this powder. For those who ask.I am obviously loading for a 556 NOT a 223. otherwise why mention I would be using only cases marked as 556! When I approached Chris Hodgdon with the question Does it stop copper from fouling or remove it with each shot? with a smirk he responded Its a proprietary formula. With no pressure signs up to 45.8 grains of 4166 I decided to push further and see what I could get. IMR 7977 is comparable to Hodgdon H1000. When we are sold out, we are sold out. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. I live in florida and shoot the same load all year. bolt reload data with 65 gr. It is an extruded powder with a perfect burn speed for cartridges like 308 Winchester, 7.62mm NATO, 22-250 Remington or 257 Roberts, among other cartridges. Tag: IMR 4166 Loading for the AR-15 with the LEE Auto-Drum Powder Measure. Once they had a couple dozen rounds loaded with each powder, they went and shot them with each powder at 25 F, 65 F, and 140 F. The muzzle velocity of each shot was recorded using both a LabRadar Doppler Radar and a MagnetoSpeed Chronograph. I use this powder in my 6mm dasher bench gun. Very happy with the results. I'm very happy with this powder. It is an extruded powder and is perfect for cartridges like 270 Winchester, 30-06 or 300 Winchester Short Magnum, among others. Share the post "Cant Find Varget for Sale? Hodgon VARGET, IMR 3031, IMR 4064, IMR 4166 Enduron, IMR 4831, IMR 4895, Lovex D073.6, Lovex S060, . when enduron works it is often same hole shooting. Reviews can only be submitted while being logged in. I understand this is an old thread, but want to reply anyway, 243 75gr V-Max loads using StaBall or IMR 4166. Some powders are more affected by changes in temperature than others. . Moving on, the individual loads were fired and the barrel was allowed to cool between each group. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. In 2003, Hodgdon Powder Company acquired the IMR brand bringing these prestigious powders under the umbrella that also includes Hodgdon, Winchester and GOEX. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. this stuff is not affected temp at all. In fact, E. I. duPont arrived in America in 1800 determined to make an improved gunpowder and, by 1802, was producing gunpowder in a new plant along the Brandywine River in Wilmington, Delaware (this plant morphed into what is today the GOEX brand of black powder). When placed and configured optimally, the LabRadar can measure muzzle velocity with +/- 0.1% accuracy, according to the manufacturer. In modern type guns, 4166 IMR Enduron Powder is a viable powder. Re: IMR 4166 in .223. Find load data for IMR 4955 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4955 is a versatile, match-grade propellant with a mid-range burn speed that is in between IMR4451 and IMR7977. Are your groups that good ? IMR 4166 possesses the fastest burn rate in the Enduron lineup. IMRs press release provides these descriptions of the new Enduron propellants: IMR 4166 is the first in the series of Enduron propellants. This powder is comparable to Hodgdon H4350. Choose from a variety of powders for everything from small-caliber ammo to magnum rifle cartridges in both 1 lb canisters and 8 lb jugs. The IMR brand was first introduced under DuPont in the 1930s. The responsible reloader always errs on the side of caution, so I decided to stop there. The rifle was placed on the 50 yard line and supported both fore and aft by sandbags. Being one of the easiest people in the industry to talk to, a secret this guarded certainly sparked my curiosity, so I made sure to order a test sample. I have enough on hand to last for a while, but when I found some IMR 4166 available, I decided to try it for my MPA .308. With Varget so hard to find, if IMR 4166 proves accurate (and available) we might see many .308 Win shooters make the switch. I'm looking for some load data for the 55gr V-Max in 223 Remington with IMR 4166. It provides top performance in big game cartridges such as 25-06, 280 Remington and 300 Winchester Magnum. Find load data for IMR 4831 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4831 has a slightly slower burn rate speed than IMR 4350. Today, only the newest reloading fuels can exceed that with a 55-grain bullet in the commercial .22-250. .225 Win. OAL 2770 Sierra Case Guide to IMR Enduron Powders Temp Stable, Reduced Fouling, IMR Introduces New Enduron Powders: 4166, 4451, 7977, Guide to IMRs Enduron Powders What You Need to Know, IMR Enduron 8133 New Slow-Burn-Rate Magnum Powder, IMR Powders introduces IMR 4955 Enduron Powder. Share the post "IMR Introduces New Enduron Powders: 4166, 4451, 7977". Find load data for IMR 7977 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 7977 is a slower burn rate in the Enduron family. (The only two .45-70's I own are trapdoor Springfields.) You are using an out of date browser. The new powder line-up comes in three flavors: 4166, 4451 and 7977. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); [ARCHIVED THREAD] - IMR 4166 .223 Rem. It is expected to perform well in the .308 Winchester and in 6mm cartridges running the heavier (95-107gr) projectiles. Generally no two rifles will like the same exact load. IMR 7977 is comparable to Hodgdon H1000. Testing consisted of a single 5-shot group of each incrementmental charge weight just to get a rough feel for the potential of this powder. Trail Boss is based on new technology that allows very-high loading density, good flow through powder measures, stability in severe temperature variation, and, most importantly, additional safety to the handloader. Be Alert: Publisher cannot be responsible for errors in published load data. CL 2.005 CC 300 BLK ($53.49 per box of 20), Law Tactical Gen 3-M AR Folding Stock Adapter, 2022 Editors Choice Award Winning Silencer Central Banish Backcountry Suppressor. Cant find Hodgdon Varget on dealers shelves? for 223. That means swings in ambient outside temperature can affect your internal ballistics, which will directly affect your muzzle velocity, which will change your bullets trajectory. My factory sierra high 2576 $182.75. 4166 is the fastest burning powder, for cartridges like .223 Remington and .308 Winchester. I hope to get some time on the new bull barrel AR. I've only seen a handful of load data for IMR 4166 and 223, it was 69 Sierra and 77 Sierra. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; 44gr 4166 JavaScript is disabled. On the official Hodgdon/IMR burn rate chart, IMR 4166 is between H4895 and Varget. So they would likely show much larger swings than what these four top-performing powders showed. Improved Military Rifle IMR 4166 Improved Military Rifle IMR 4320 Improved Military Rifle IMR 4350 Improved Military Rifle IMR 4451 Improved Military Rifle IMR 4831 Improved Military Rifle IMR 4895 Improved Military Rifle IMR 8208 XBR Improved Military Rifle SR 4759 Ramshot Big Game Ramshot TAC Ramshot X-Terminator Shooters World AR PLUS Shop Now ! _gaq.push(['_setDomainName', '.accurateshooter.com']); VAT (where applicable), shipping costs and possible delivery charges. Where to Find IMR 4166 Powder Sep 25, 2010 . Third, Enduron powders are designed for optimal load density. IMR 4166 is part of their new Enduron line that launched just a few years back. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); both should give you specific info. The components in question make up my service rifle load in .223 and they are Hornadys 55 grain V-max bullet seated into a Lake City brass case at an OAL of 2.270 and ignited with a Wolf Small Rifle Primer. Load data for the new IMR 4166 was taken from Hodgdons 2015 Annual reloading manual, and in increments of .3 grains or less, loads were worked up from 24.0 through 25.1 grains of IMR 4166. CLICK HERE to Read Full Powder Temperature Stability Test on Precision RifleBlog.com. They both love it. For example, IMR 4166 is a good replacement for Hodgdon Varget (commonly used in the .223 Rem, 6mmBR and .308 Win), while IMR 4955 is a fine substitute for H4831 (favored by F-Open shooters for the .284 Win and 7mm WSM cartridges). 5 rounds shot 110 PCS pistol, 2022 Editors Choice Award Winning Ruger 5.7 LC Carbine, 2022 Editors Choice Award Winning Mossberg 940 Pro Tactical 12-gauge, Fiocchi Introduces New 5.7x28mm Subsonic Ammo, Lehigh Defense 115-gr. Not a brand to rest on its laurels, IMR continues to develop new powder formulas that are increasingly insensitive to weather and temperature changes, have improved burn speeds, and contain additives that remove copper bullet jacket fouling. The Enduron Technology powders are available in one-pound (1 lb) and eight-pound (8-lb) containers from quality reloading retailers. 3, tried this powder and same bullet in the grandson's Ruger77 .223. The IMR Enduron line is similar to Hodgdon's Extreme Extruded line, in that it is temperature insensitive. The 4166 seemed interestingit matched my motorcycle jacket, but none of my reloading manuals had any data for it (it's that new). New customer? Subscribe to the free newsletter and do not miss any news or promotions. 44gr 4166 Anyway, I like the 4166! Find load data for IMR 8208 XBR propellant by clicking the button "Loads for this Powder".More about this powder:IMR 8208 XBR is an accurate-metering, super short-grained extruded rifle powder was designed expressly for match, varmint, and AR sniper cartridges. The manual allows for stiffer charges, but at 25.1 the load begins to compress. From the 17 Remington to the 243 Winchester to the 375 H&H Magnum, accuracy and performance are excellent. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. As with all load development, reference a credible reloading manual, then start at the minimum and work up in small increments. IMR 4166: This newer propellant produced by General Dynamics in Canada had the best temperature insensitivity and may be the best substitute for Varget across a wide temperature range with 77 to 80 grain bullets. worst groups at .5 moa most groups around the .3 moa mark. Be the first to share your insights. Find load data for IMR 4064 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4064 is a medium-range burn speed powder and is one of the most versatile propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Short Magnum, 308 Winchester, 338 Winchester Magnum, and the list goes on and on. IMRs press release states: IMR 4166 [has] a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington and dozens more.. The accuracy results were almost identical to those of Varget, with my best group coming in at 1.05 MOA from a 24.6-grain charge of 4166not bad for an initial round of load development. CL 2.005 Sign up to get updates and access to exclusive promotions. Thanks, Was looking for an equivalent powder from H4895 when I ran into the 4166. The maxorder quantity of any powder SKU is. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. OAL 2770 Sierra Case In this post, I've got some great highlights including the LEE . Trim to length as needed, clean/uniform the primer pockets, reprime, charge with powder, verify powder charges, seat bullets to specific overall length, perform final inspection, box, and label. Grab some at your nearest dealer, or for more information, contact IMR Powder Company; Tel. This propellant performs comparably to Hodgdon H4831 but charge weights are materially different. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';