I know any two examples of a particular barrel, either factory or custom, will vary as far a muzzle velocity goes for the same load. Will Standard Deviation (SD) and Extream Spread (ES) vary as well among two examples of the same barrel? What's got me thinking about this is, a buddy and I were chronographing some Hornady ELDM 140's and we were getting different velocities as you'd expect but we were also getting different SD and ES. He was shooting a DT with a factory barrel and I was shooting an RPR with an LRI barrel on it. The ES and SD on my barrel was better while the velocity on his barrel was higher as you'd expect with a 26" vs 24".
Thanks in advance!
Thanks in advance!