10-27-2013, 04:59 PM
Like you, I've seen some barrels that show the trait, while others do not. I suppose that it might have something to do with how the barrel was stress relieved. It might also relate to particular bullets, and / or the degree to which a particular barrel is prone to copper fouling. Excessively torqued muzzle devices, barrel nuts, and / or gas block screws could also be potential factors.
In any event, as long as it's predictable, you can easily adjust if that POI deviation matters on the cold-bore shot.
In any event, as long as it's predictable, you can easily adjust if that POI deviation matters on the cold-bore shot.
Drifter