358156 hp
At large, whereabouts unknown.
Check the fit between your upper & lower receivers. There should be very little to no movement when they're assembled. Check it with the bolt all the way forward, and also with the bolt locked back and held open by the lock. I've seen receivers so poorly matched and loose that any hope of accuracy is totally futile. I got a complete upper like that in a trade with a low count stainless match barrel on it that wouldn't shoot for sour apples. The upper receiver actually rocked pretty loosely on the assembly pins, there was absolutely zero contact between the receiver walls themselves.
I kept the barrel, but gave that upper receiver away free to a guy. No charge. I had bought a small lot of BCM blem uppers, and assembled one of them with the match barrel, fit to my OCD (CDO). We're down to 1/2 inch groups now, and all is well, better. I still expect a little better accuracy from that barrel, but I'll need to be seriously snowed in and bored out of my mind to be motivated enough to work on it.
This is the sort of thing I was referring to earlier as "tolerance stacking".
I kept the barrel, but gave that upper receiver away free to a guy. No charge. I had bought a small lot of BCM blem uppers, and assembled one of them with the match barrel, fit to my OCD (CDO). We're down to 1/2 inch groups now, and all is well, better. I still expect a little better accuracy from that barrel, but I'll need to be seriously snowed in and bored out of my mind to be motivated enough to work on it.
This is the sort of thing I was referring to earlier as "tolerance stacking".