Witryna18 sie 2024 · IMR 4227 is suitable for supersonic and subsonic loads. Hodgdon produced the following load data using a 16” barrel with a 1:8 barrel twist rate, Hornady cases … Witryna18 gru 2024 · Next is IMR 4227. It’s quieter than 1680 in subs but it also doesn’t produce as much gas. Can’t run 4227 with MOST subs without the can. I’d still choose 1680 if given the choice. 1680 can also do supers pretty well, but again that’s where things like 396 and H110 shine. I use H110 for my 110/125 supers.
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WitrynaPS, if you go on the 300 black forum, they had a subsonic accuracy competition about 2 years ago. The winner was well sub moa using this bullet and IMR 4227. IIRC, he … Witryna17 lut 2024 · If you have any IMR 4227 it works pretty well, a bit less velocity than H110. For subs in a silenced AR, 1680 is the safest for cycling but also the loudest choice. 4227 and Lil Gun are quieter but less certain of full bolt lock back. So far H110 has worked great, rifle is reliable and accurate enough. how many housewives in america
Powder recommendations for Hornady 150gr FMJBT (#3037) -300BlkTalk
Witryna14 wrz 2024 · Testing some IMR 4227 out in the 300 Blackout today. Using some Cast Lee 309-230 Powder Coated Rounds, sized to .309. Very accurate and spectacular numbers... Witryna4 gru 2024 · 300 ACC Blackout Loaded with IMR 4227 So far it is the best round I have cast and loaded. Minutemen Coffee 4.21K subscribers Subscribe 8.2K views 5 years ago Pro's and Con's … WitrynaIMR 4227 is a medium burn speed, magnum pistol propellant. If a pistol says Magnum, IMR 4227 is the choice for true magnum velocities and performance. In rifles, this powder delivers excellent velocity and accuracy in such cartridges as the 22 Hornet, .221 Fireball, and .300 AAC Blackout. howard arms brampton