![]() 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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