IMR 7977 is comparable to Hodgdon H1000. bolt reload data with 65gr. .225 Win. 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. Find load data for IMR 4451 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR Enduron 4451 is a versatile, match-grade propellant with a mid-range burn speed in the 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. Case: Winchester; Twist: 1:12 inches; Primer: Federal 210M, Large Rifle Match; Barrel Length: 24 inches; Trim Length: 2.005 inches. $49.99 - $357.99 4.48 17 reviews IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. 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. 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. Then Try IMR 4166 Powder, Powder Temp Stability IMR Enduron vs. H4350 and Varget, http://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/, Powder Temp Stability: IMR Enduron vs. Hodgdon Extreme, Guide to IMRs Enduron Powders What You Need to Know, Powder Valley has new IMR 4166 Powder in Stock, IMR Introduces New Enduron Powders: 4166, 4451, 7977. 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. It acts a whole lot like Varget, but is much easier to find. msinc _gaq.push(['_trackPageview']); This powder is comparable to Hodgdon H4350. 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. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. 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. Load data should be forthcoming pretty soon. The LabRadar is a new type of device that allows you to measure muzzle velocity within at least +/- 0.1% of the reading. For more information and IMR 4166 LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual. Awsome powder in my book. Or maybe have QuickLoad data? The 6.5 responded well to the precisely weighed powder charges in carefully prepared cases. Loading density is perfect for magnums, contributing to superb uniformity. It is a true magnum cartridge propellant with outstanding performance in such cartridges as the .300 Winchester Magnum, 7mm Remington Magnum, .338 Lapua and more. Anyone seen/tried this combo? An acronym for. Sierra load data for over 95 Berger bullets in over 65 calibers with all suitable powders on the market. Ive heard some say 4166 is similar to 4064, which I haven't used or have on hand currently. 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. IMR 4166 possesses the fastest burn rate in the Enduron lineup. . I didn't want to like this stuffI figured I was likely buying marketing hype for $31/lb at my LGS. The pelletized form makes for faster reloads with pre-formed charges that easily drop down the barrel and is easy to pack without the need for measures or funnels. Such loads are marked with an asterisk in the data to show where standard 7828 will not fit. Find load data for IMR 4350 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4350 is a medium- to slow-burn rate propellant and is the number one choice for the new short magnums, both Remington and Winchester versions. Please help us to improve and report any suggestions via our contact form. These are the first groups with this powder. I bought all three. 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. Shop Now ! Third, Enduron powders are designed for optimal load density. 3, e-mail Hornady and the powder mfg. JavaScript is disabled. IMR 8133 IMR Enduron 8133 is the slowest burn rate in the Enduron family. Will purchase more. You are using an out of date browser. 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. Trail Boss Reduced Rifle Load. 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. I did the usual load development testing and found that 43.0 gr. IMR 7977 is a slower burn rate in the Enduron family. The maxorder quantity of any powder SKU is. In 2015, IMR will introduce three (3) new Enduron powders: IMR 4166, IMR 4451, and IMR 7977. When placed and configured optimally, the LabRadar can measure muzzle velocity with +/- 0.1% accuracy, according to the manufacturer. Versatility with uniformity and accuracy. 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 powder is comparable to Hodgdon H4831. Address: xxl-reloading.com, Gartenweg 9, 83661 Lenggries, Germany. First load. This Enduron series powder is temp-stable and accurate. Are your groups that good ? IMR recently released a new line of powders with Enduron Technology which is also marketed to have extreme temperature stability. The Hodgdon powder company is world renowned for introducing revolutionary technology to the reloader. For more information, go towww.P65Warnings.ca.gov. Share your experiences with other customers. Share the post "Cant Find Varget for Sale? 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! You may not reproduce original text or photos without advanced permission in writing. . I loaded 23.5 gr in Lapua brass with no trouble using a 10" drop tube: http://www.xxicsi.com/powder-funnel.html of 4166 in Peterson SRP brass topped with 168 gr SMK's seated 0.010" off gave me great performance. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. Reviews can only be submitted while being logged in. 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. [ARCHIVED THREAD] - IMR 4166 .223 Rem. This powder is comparable to Hodgdon H4350. First load. _gaq.push(['_trackPageview']); temperature stable too. IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. On the official Hodgdon/IMR burn rate chart, IMR 4166 is between H4895 and Varget. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. Or maybe have QuickLoad data? The IMR Enduron line is similar to Hodgdon's Extreme Extruded line, in that it is temperature insensitive. Newtosavage Dec 9, 2020 #9 ericwh Well Known Rokslider Joined Mar 9, 2017 Messages 479 Location PA Powder Temp Stability: Hodgdon Extreme vs. IMR Enduron VAT (where applicable), shipping costs and possible delivery charges. 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. * All prices incl. In 2003, Hodgdon Powder Company acquired the IMR brand bringing these prestigious powders under the umbrella that also includes Hodgdon, Winchester and GOEX. Powder Valley Inc. (PVI) and Midsouth Shooters both have plenty of IMR 4166 in stock right now. This propellant performs comparably to Hodgdon H4350 but charge weights are materially different. 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. IMR 4451 had the largest swing in muzzle velocity of the powders tested, but keep in mind just 68 fps over 115 F swing is still a good performance. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. 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. We continue to prioritize our shipments to our traditional sales channels to maximize powder availability at retailers. Shooters has been keeping it around $20/lb if you buy in quantity. Please enter your login details below. ALL THE LOAD DATA YOU'LL EVER NEED ALL IN ONE PLACE! Find load data for IMR 7828 SSC propellant by clicking the button "Loads for this Powder".More about this powder:IMR 7828 SSC is a magnum rifle powder with exactly the same burn rate as standard IMR 7828 and uses the same data. The manual allows for stiffer charges, but at 25.1 the load begins to compress. This is a true magnum propellant yielding outstanding performance in .300 Winchester Magnum, 7mm Remington Magnum and .338 Lapua Magnum. Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder".More about this powder:IMR End. You can find that here: http://precisionrifleblog.com/2016/06/19/powder-temp-stability-hodgdon-extreme-vs-imr-enduron/, Share the post "Powder Temp Stability IMR Enduron vs. H4350 and Varget". Most powders arent specially formulated to be temperature stable. Sign up to get updates and access to exclusive promotions. var _gaq = _gaq || []; It's been over two years of this ammo & reloading nightmare. I'm very happy with this powder. The manual allows for stiffer charges, but at 25.1 the load begins to compress. I went online and found data published by the manufacturer, so I worked with that for my 30 06. It is the perfect burn speed for cartridges such as .308 Win, 7.62mm NATO, 22-250 Rem and 257 Roberts. _gaq.push(['_setDomainName', '.accurateshooter.com']); Varmint shooters with small-bore cartridges love it. Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. In rifles, this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet and 221 Fireball. IMR 4166 possesses the fastest burn rate in the Enduron lineup. h4895 Reduced Rifle Load. 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. 2. Then Try IMR 4166 Powder", A couple seasons back, PrecisionRifleBlog.com (PRB) published a significant field test of powder temperature stability. IMR is an acronym for Improved Military Rifle. The technology in IMRs Enduron line of powders provides four very important qualities that enhance both in-gun and downrange performance. : (913) 362-9455; E-mail: [emailprotected]; Web: www.imrpowder.com, (Disclaimer: The loads described above were safe for this rifle, on this particular day. IMR now offers five (5) Enduron powders: IMR 4166, IMR 4451, IMR 4955, IMR 7977, and IMR 8133. Where to Find IMR 4166 Powder It is formulated to reduce fouling and to be stable across a wide temperature range. IMR 4166 is one of IMRs Enduron family of propellants. Some powders are more affected by changes in temperature than others. This propellant performs comparably to Hodgdon Varget but charge weights are materially different. I went to the IMR site and it takes you to hodgdon's loading site. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); The Enduron Technology powders are available in one-pound (1 lb) and eight-pound (8-lb) containers from quality reloading retailers. Anyone seen/tried this combo? It is primarily a pistol powder but has some application in rifles. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. 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. var _gaq = _gaq || []; Posted by Christopher Brown on Apr 19th 2022. Be the first to share your insights. These new powders should compete directly with the Hodgdon Extreme Series, which gives shooters more temp-stable powder options to consider. Posted: 7/2/2021 8:19:25 PM EST. 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. Great stuff! 7977 is the slowest of the batch, for shoulder thumpers like the .338 Lapua and the .470 Nitro Express. Choose a IMR powder and find the respective load data for it. The IMR 4166 Powder may be on the slow side but will be interesting with heavier bullets. Temperature change stability the Enduron line is insensitive to temperature changes. This propellant performs comparably to Hodgdon H4831 but charge weights are materially different. Was looking for an equivalent powder from H4895 when I ran into the 4166. One member wrote: in my 6.547 IMR 4166 gives speeds and accuracy pretty much exactly the same as Varget. And other shooters have observed reduced copper fouling with Enduron series powders, so IMRs Enduron anti-fouling chemistry does seem to work. A versatile, match-grade propellant, IMR 4166 is comparable to Hodgdon Varget. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. Copper fouling should be minimal, allowing shooters to spend more time shooting and less time cleaning a rifle to retain accuracy. IMR 4166 powder? Find load data for IMR 4227 propellant by clicking the button "Loads for this Powder".More about this powder:IMR 4227 is a medium burn speed, magnum pistol propellant. 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. Find load data for IMR 4166 Enduron propellant by clicking the button "Loads for this Powder". Loading density is perfect for magnums, nicely filling the case at maximum charges, contributing to superb uniformity and accuracy. very consistent in .243 shooting 65gr vmax and 3550 fps. when enduron works it is often same hole shooting. The top shooters in the PRS and veteran long-range shooters in other disciplines have learned to value a temperature-stable powder. IMR4166-08: IMR 4166 8 LBS. CL 2.005 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. for 223. 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). It provides top performance in big game cartridges such as 25-06, 280 Remington and 300 Winchester Magnum. Clean and inspect the cases, lube and full-length resize/decap, clean, and inspect them again. Mag. It provides top velocities and performance with heavier bullets in medium-sized magnums. 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 We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. ga.src = ('https:' == document.location.protocol ? Good luck. spitzer boat tail & imr 4166, 223 80 gr bullet imr 4166, 223 load with imr 4166, 243 barnes 80 gr ttsx imr 4166 load data, 243 barnes 80gr ttsx imr 4166 load data, 243 barnes ttsx with imr 4166 load data, 243 barns ttsx with imr 4166 . Find load data for IMR 4198 propellant by clicking the button "Loads for this Powder".More about this powder:This fast-burning rifle powder gives outstanding performance in cartridges like the 222 Remington, 221 Fireball, 45-70, and 450 Marlin. We do not take backorders and our Tech Services team cannot take orders via email or phone. Load data for 50 loads in caliber 7 x 57 with .284 | 139gr . .223 Rem. From the 17 Remington to the 243 Winchester to the 375 H&H Magnum, accuracy and performance are excellent. Reloading 223/ 5.56 for the AR-15 with IMR 4166 30-06JOHN, GUNS AND RELOADING 1.86K subscribers 2.8K views 1 year ago I reload .223/ 5.56 for the AR-15 using a powder not popular, IMR. 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. Shooters looking for readily-available alternatives to hard-to-find extruded powders should definitely check out the Enduron line-up. Very happy with the results. IMR 4166 in .223. ARCHIVED. It may not display this or other websites correctly. (see note 1 ). 4451 is the medium burning powder, for medium cartridges like the .30-06 Springfield and the .270 Winchester. Perhaps the new IMR 4166 will be as good or better. The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. OAL 2770 Sierra Case Learn more about Enduron powders at www.enduronimr.com. CLICK HERE to Read Full Powder Temperature Stability Test on Precision RifleBlog.com. I live in florida and shoot the same load all year. $40.99 - $270.99. Anyway, I like the 4166! The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. I use in 243 Win and 6.5 CM. The first IMR reloading powders included ever popular favorites IMR3031 (1934), IMR4064 (1935) and IMR4350 (1940). var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); Assuming all other environmental conditions remain the same, an increase in air temperature will cause a flatter trajectory due to a lower air density (easier for the bullet to cut through the air). The folks at PrecisionRifleBlog.com meticulously loaded 6.547 Lapua ammo with each powder using some of the best equipment available. The 223 is the most common round. Youll also find official load data in the Hodgdon 2020 Annual Manual. The IMR brand was first introduced under DuPont in the 1930s. Powders include IMR of Varget. For info on other IMR powders, visit www.imrpowder.com. I was planning to switch to 4166 for my .308, but it seems that it has also become nearly impossible to source. imr 4166 for sale .223, .223 loading data imr 4166, .223 rem. Other than that , great job, thanks. They list loads for Sperry SP and Barnes TTSX in 55gr weights. 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. I'm using this in my Tikka CTR 223 under 73 gr Berger BT target bullets. UPS has officially stopped shipping guns? The maxorder quantity of any powder SKU is, https://shop.hodgdon.com/sites/www/files/2022-04/2022-IMR%20Endurons%20SDS.pdf, https://shop.hodgdon.com/sites/www/files/2020-08/sell-sheet-imr-enduron-final.p. . That provided two sets of velocity numbers. 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. 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. Choosing 4166, I decided to use it in place of my usual choice of Varget in a known accurate cartridge and rifle combination. A Meopta MeoStar 1.710x riflescope was mounted to ensure an optimum sight picture. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. With no pressure signs up to 45.8 grains of 4166 I decided to push further and see what I could get. 5 rounds shot $25.45 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. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. Taking the rifle back to the workbench for a cleanup proved the claimit had virtually no copper fouling, as proven by the absence of a blue hue in the exiting patch soaked in Sweets 7.62 bore solvent. IMR 4166 performs well in the .308 Win (for bullets up to 175 grains) and in 6mm cartridges running the heavier (95-107gr) projectiles. Its a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. I have heard the same criticism from other forum members. If you are the site owner (or you manage this site), please whitelist your IP or if you think this block is an error please open a support ticket and make sure to include the block details (displayed in the box below), so we can assist you in troubleshooting the issue. DuPont had historically been a major supplier of military propellants long before becoming one of the handloaders favorite powders. 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. worst groups at .5 moa most groups around the .3 moa mark. VISIT THE RDC WHITE HOTS White Hots 50/50 is a 50 Caliber, 50 grain pellet for muzzleloaders. I do not see it listed for 40 grain bullets. The results were very interesting, to say the least. Finally, Enduron powders are environmentally-friendly, crafted from raw materials that are not harmful to the environment. Villain Weapon Systems ATPIAL-C EFL -- Enhanced Class 3R Performance Available Now from TNVC! .1 to .2 gr accuracy. Final diagnosis: This powder is certainly a winner in the accuracy field, and if the cleanup continues to be this simple it is sure to find a home on my reloading bench. Be Alert: Publisher cannot be responsible for errors in published load data. They both love it. IMR Enduron 4166 is a versatile, match-grade propellant, with the fastest burn rate in the Enduron line. 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 main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density and being environmentally friendly. })(); To comment on a post, click Post Title or "Comment" Link. Will purchase more. 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. These short-grain, extruded powders will deliver temperature insensitive quality while keeping copper residue to a minimum. Thats because a change in temperature can affect the trajectory or flight path of the bullet in two well-known ways: 1. 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. forum.accurateshooter.com/threads/imr4166-loads-for-223.4053707/, Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36. I don't see any info for the A-Max though. Subscribe to the free newsletter and do not miss any news or promotions. Very consistent velocity, quality powder, not so good on powder throw due to it being a stick powder. We place limited powder inventory for sale on a regular basis on our website. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. So, I'd use it for loads listed by Hodgdon. The 4166 seemed interestingit matched my motorcycle jacket, but none of my reloading manuals had any data for it (it's that new). IMR Legendary Powders now offers four (4) Enduron powders: IMR 4166, IMR 4451, IMR 4955, and IMR 7977. I have had good luck with 4166 in .223 bolt rifles. With Varget so hard to find, if IMR 4166 proves accurate (and available) we might see many .308 Win shooters make the switch. In this post, I've got some great highlights including the LEE . Its loading density is perfect for magnum cartridges and contributes to superb uniformity, yielding outstanding performance in 300 Winchester Magnum, 7MM Remington Magnum and .338 Lapua Magnum. Each of these are still favorites with handloaders today! 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. In today's shooting you can clearly see the scatter that centers at 45.5 and the obvious OCW at 46.2. 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. IMR 4955 is a medium burn speed powder, falling in between IMR 4451 and IMR 7977 in burn speed. They are suitable for a wide variety of cartridges, from small varmint cartridges all the way up to the .338 Lapua Magnum. Loads case to bottom of bullet, clean burning, very consistent, accurate results with no flyers, flows thru powder measure with a. (The only two .45-70's I own are trapdoor Springfields.) IMR 7977 is the slowest burn rate Enduron Technology powder. 17 reviews. Sign up to get updates and access to exclusive promotions. Copper fouling reduction these powders contain an additive that drastically reduces copper fouling in the gun barrel. They are suitable for a wide variety of cartridges, from small varmint cartridges all the way up to the .338 Lapua Magnum. spitzer boat tail & imr 4166, .223 rem. Loading density is perfect for magnums, contributing to superb uniformity. Here on Ultimate Reloader you can count on a LOT of AR-15 content coming over the next year: everything from reloading .223/5.56, to hunting, a lot more with suppressors, and some custom AR-15 rifle action!
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