OK, I want to build a DI carbine AR chambered in .300 BLK. I plan on this being a super sonic build, I have no interest in a suppressor or other ATF-BS. I would be privy to using an SBR barrel and manufacturing my own custom muzzle break to extend the barrel to 16" and silver soldering it in place if that would help accuracy and or performance. (Someone told me it would, I am skeptical at best. Maybe that applies specifically to suppressed rifles...what do you guys think.)
My questions would be;
1. What barrel length should I go with for the best accuracy and performance?
2. since I am relatively unfamiliar with this particular round, should I go with a pistol or carbine length gas system (I already have the handgaurd so midlength or longer is out of the question). I like the idea of the handguard covering the gasblock, however I don't want to go that route if the performance or durability will suffer to any significant degree. 1 or two MOA wouldn't bother me, so long as I stayed within 3" MOA capability at 100 yards, though I would much prefer better.
3. I find all sorts of info for suppressed carbines and pistols, but what twist rate would be most effective for a super sonic carbine of this caliber?
Thanks in advance for all replies!
My questions would be;
1. What barrel length should I go with for the best accuracy and performance?
2. since I am relatively unfamiliar with this particular round, should I go with a pistol or carbine length gas system (I already have the handgaurd so midlength or longer is out of the question). I like the idea of the handguard covering the gasblock, however I don't want to go that route if the performance or durability will suffer to any significant degree. 1 or two MOA wouldn't bother me, so long as I stayed within 3" MOA capability at 100 yards, though I would much prefer better.
3. I find all sorts of info for suppressed carbines and pistols, but what twist rate would be most effective for a super sonic carbine of this caliber?
Thanks in advance for all replies!