An ideal solution for loading 357 Magnum, 44 Magnum, and even 410-bore shotshell ammunition, its high loading density provides optimal velocity. Available in 1 lb., 4 lb. The best 5 shot group was .334 MOA while the worst was 3.787 MOA! He had groomed his son, William Wirt Winchester as his successor, but the younger Winchester died of tuberculosis in March of the following year before he could assume control of Winchester Repeating Arms. As with IMR 4227, Hodgdon obtained the following load data using a 16 barrel with a 1:8 twist rate, Hornady cases trimmed to 1.363, and Remington 7 1/2 Small Rifle Magnum primers. Whether you are reloading to save money or to create the perfect load for hunting, self-defense, or suppressed use, there is load data and a suitable propellant for you. Depending on the weight and length of the bullet selected, the amount of space available inside the case may change dramatically. TESTED: Berry's 220gr 300 BLK Bullets - Ultimate Reloader This could be Hodgdon H110, Hodgdon CFE Black, Accurate 1680, Reloder 7 or a variety of others. Often powders that are way to slow to be used effectively in the 300 blk. 300 blackout reloading - GunsAmerica Digest Runs with or without a suppressor. My Hornady 10th edition manual doesn't include it either. When a certain caliber can range from pushing bullets around 150 grains down range around 2500 feet per second to throwing 245-grain bullets at 950 feet per second, it obviously . To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser. (r.). Winchester 231 powder and the 300 Blackout - Bayou Shooter --2195 fps. 300 BLK load development: 125, 135, 175 and 220 SMK - rifleshooter.com Suggested subsonic load: R-P 300 AAC BLACKOUT brass Remington 7.5 primers 11.2 grains of AA 1680 powder Case length is 1.368 +0.000 -0.020 Sierra 220 MK loaded to 2.089 OAL (this length is optimal for reliable feeding from USGI magazines) . Just sayn, I switched to LilGun for 220RN sub groups we t down to under 1 MOA cycles 26 bbl great. I worked up a load and settled at 9.8gr of 296 which turns out to be an exact load listed by Winchester on their load data website. It was later followed by CFE Pistol in 2014 and CFE BLK in 2019. When it comes to recoil energy, assuming you're using an 8 pound rifle, the Blackout hits you less with 4.3 foot-pounds compared to the AK's 6.34 foot-pounds. On some guns, the short case can simply snap out from under the extractor if using a constant tension spring type ejector. The 1:7 twist worked fairly well with the heavier, 220 SMKs, with groups ranging from 1.082-1.477 MOA. If you choose to load subsonic ammo for an AR-15, some bullet ogives can interfere with first rib in the standard AR magazine, causing the ammo to bind and not feed correctly. You find load data for cartridges in caliber .300 AAC Blackout with all common powders and bullets by clicking the "Loads in this caliber" button above.
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