Ok gents, hoping some of the experts here can help me. I got into reloading a little bit ago to try and bring down the cost associated with shooting my 308’s. I found some early success with my MK316 clone loads, and figured since I already had the press and a ton of old brass, I might as well try my hand at some 5.56 loading.
To begin with - I am not looking for match grade accuracy here, just decent range ammo and something to store away. I’m using mixed headstamp 5.56 brass, 55gr Armscor bullets, Remington SRB primers, and Ramshot TAC powder, all loaded to 2.25 COAL to match M193. I’ve tried quite a few different charge weights between 24.5 and 26 grs and honestly I’m pretty disgusted with my results. I have not been able to get a single 5 shot group, suppresses or unsuppressed, through any rifle or barrel (all of which are very decent - Geissele, Rainier CHF/CL Mountain, Colt SOCOM, etc) to measure less than 3.3 MOA. Most are between 4-5 MOA.
What am I missing here? Are these Armscor bullets just that bad? They were certainly cheap, but 4-5 minutes seems terrible to me. I haven’t crimped any of them, but that’s the next variable for me to test. I’m also planning on trying to bring my OAL back in to the book minimum of 2.20 after running it all the way out to 2.26 with no improvement. For context, my Rainier barrel shoots 2.7 minute groups with M193, .75 minute groups with MK262 and about 1 minute with some cheap 77gr Reman loads.
I’m just looking for a decent range load that will print 2-2.75 MOA groups like M193 will and that will come close to it in terms of velocity. Is that too much to ask for from mixed brass and cheap bullets? If not, is it this TAC powder? The lack of a crimp? Appreciate any advice you guys have. If these don’t print I can always chew them up at the 25 yard line, but it would be nice to make something decent with the rest of these bullets and brass.
To begin with - I am not looking for match grade accuracy here, just decent range ammo and something to store away. I’m using mixed headstamp 5.56 brass, 55gr Armscor bullets, Remington SRB primers, and Ramshot TAC powder, all loaded to 2.25 COAL to match M193. I’ve tried quite a few different charge weights between 24.5 and 26 grs and honestly I’m pretty disgusted with my results. I have not been able to get a single 5 shot group, suppresses or unsuppressed, through any rifle or barrel (all of which are very decent - Geissele, Rainier CHF/CL Mountain, Colt SOCOM, etc) to measure less than 3.3 MOA. Most are between 4-5 MOA.
What am I missing here? Are these Armscor bullets just that bad? They were certainly cheap, but 4-5 minutes seems terrible to me. I haven’t crimped any of them, but that’s the next variable for me to test. I’m also planning on trying to bring my OAL back in to the book minimum of 2.20 after running it all the way out to 2.26 with no improvement. For context, my Rainier barrel shoots 2.7 minute groups with M193, .75 minute groups with MK262 and about 1 minute with some cheap 77gr Reman loads.
I’m just looking for a decent range load that will print 2-2.75 MOA groups like M193 will and that will come close to it in terms of velocity. Is that too much to ask for from mixed brass and cheap bullets? If not, is it this TAC powder? The lack of a crimp? Appreciate any advice you guys have. If these don’t print I can always chew them up at the 25 yard line, but it would be nice to make something decent with the rest of these bullets and brass.