JavaScript is disabled. 5 rounds shot The weight of a kernel of 4166 was almost double the weight of a kernel of H4895, and they were clearly larger. The 223 is the most common round. 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. I'm very happy with this powder. IMR recommends always consulting www.IMRReloading.com for the most accurate, up-to-date data. 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. Some powders are more affected by changes in temperature than others. (see note 1 ). IMR 4451 is a mid-range burn speed powder, ideally suited for cartridges such as .270 Winchester, .30-06 and 300 Winchester Short Magnum. Third, Enduron powders are designed for optimal load density. Practical Riflery and OCW Forums-IMR 4166 vs. Varget side by side JavaScript is disabled. 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. of 4166 in Peterson SRP brass topped with 168 gr SMK's seated 0.010" off gave me great performance. IMR Enduron 4166 | Hodgdon Love the copper fouling eliminator makes cleaning a breeze, Posted by Paul rosenkranz on Nov 9th 2021. In addition, it is a longtime favorite of Match shooters. 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. I'm looking for some load data for the 55gr V-Max in 223 Remington with IMR 4166. 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. If you commonly use Varget, Alliant Reloder 15, Norma 203B, IMR 8208 XBR, or Vihtavuori N140, you might want to try IMR 4166. The Rifle: Savage 10fcp, 24" 5r, accustock .308 Win, Vortex Viper PST 4-16 Target distance: 100 yards Shot off front and rear sand bags from a bench $182.75. We are engineers, reloading enthusiasts and operate one of the most powerful ballistics calculators. 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. Case: Winchester; Twist: 1:12 inches; Primer: Federal 210M, Large Rifle Match; Barrel Length: 24 inches; Trim Length: 2.005 inches. 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. I did the usual load development testing and found that 43.0 gr. This allows up to 4% more powder space in the case and in many loads yields more velocity than standard 7828. .22-250 Remington: One of Best for Varmint Hunting Versatility with uniformity and accuracy. 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.
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