cgbills
09-27-13, 19:15
Ok my chrono is on order, but won't be here before my next outing. I have a BCM Mk12 upper, 18in 1/8 twist. I shoot BlackHills .223 75gr match. Does anyone have any velocity data for this round and setup? I will get data for my rifle when the chrono comes in, but didn't know if anyone can get me in the ballpark so I can be successful my next outing. Looking at other threads from Malon, I estimated velocity to be 2636 out of my rifle