There’s much said, unsubstantiated, about over-penetration of higher-velocity bullets. Just a bit about the whole “defensive-rifle debate”: Some say something like, “5.56 is not a good choice for home defense.” I agree, but not for some reasons commonly given. (Clearly, supersonic Blackout beats it soundly.) 45 ACP is a reliable choice for a defensive round, subsonic Blackout beats it. 45 ACP handgun loading, if we’re going on (the admittedly incomplete) calculated energy figures. 300 Blackout subsonic loads are a little more powerful than a routine. 300 Blackout is plenty powerful, in my estimation, and with radically better shootability than a higher-pressure carbine loading. Most subsonic Blackout ammo uses a bullet in the 200-grain range, and, of course. That’s another debate for others to work though in other articles, but it’s my story and I’m sticking to it. Plus, I’m a believer in “bigger is better” respecting impact effectiveness of a bullet. Subsonic Blackout has a radically milder blast and report than 5.56 or supersonic Blackout. Now, there are some very effective flash suppressors out there, but they don’t take a bit off the noise. In the dark, maybe just up out of bed, and then there’s a blinding fireball and an ear-splitting report, and it’s difficult to recover situational awareness, especially at my age, and even with my rail-mounted light. Good stuff.Ĭivil? I don’t know how many have fired a 5.56 AR-15 carbine inside a room, but it’s sensory overload. Big bullet! My magazines currently hold my most-trusted Nosler 220-grain factory ammo. I built a specialty AR-15 for home defense that I also featured in recent book project, and that was my choice. One reason for its popularity is the supersonic/subsonic option. Pretty much, it’s for those who want a bigger bullet in an AR-15 with a minimum of technical distractions (some call them problems). I like it especially in the shorter guns, and, around here at least, it’s looked on as an effective Whitetail cartridge choice. 300 Blackout, aka: AAC, is a popular cartridge among AR-15 fans. 308 but my findings show the opposite.Understatement. My previous thought was with the low recoil of this caliber the action would not be affected as drastically as with the. I had taken the time to reinforce the hogue and felt this to be a worthwhile effort until todays range trip. I am satisfied with todays testing and feel more confident knowing the rifle will shoot I just need to locate another take off HS Precision or BC Medalist stock. It is my finding that errors in shooters form, handloading regiment, and poor equipment will magnify with subsonic loads. 300 Whisper and results have been good with both platforms. Today I changed the hogue stock with my HS that was on my 5R and tried again with the same factory Corbon and group shot a solid 3/4" 100. Yesterday I shot a 100 yard group with factory Corbon subs with 220 SMKs and shot a 2" group. I have used diffirent powder and combos of bullets. I have been extremely aggravated with the performance of sub loads in my ACC-SD 300 blackout. Any suggestions for heavier bullet sub loads? Thanks for any help Using the same brass, Forster dies, and I have several pounds of different powders to try. New barrel 1-8 22 inch long no taper 90* crown Old barrel 1-10 16 inch long no taper 11* crown It's about making a rifle do what I want it to. This is not about what I will use it for or why I want to get groups smaller. Things I have tried are giving me around 1 inch groups the best being just a bit under. My issue is now I put a new barrel on with a faster twist to go subsonic and I am looking for advise on reaching a comparable level of accuracy with subsonic loads using heavy bullets 175-240 grains. 3-.4 with standard off the shelf bullets. 35 for five shots when using high end bullets and. I have had decent luck with supersonic loads averaging between. I have been working very hard with 300 blackout savage bolt gun over the last year to wring all the accuracy I can out of* this little cartridge.
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