I will say I have never seen one shift up even though there tends to be a marginal velocity increase. Part of the reason I am wondering is because recently I ran a smaller (but adequately rated) can on an AR-10 with supersonic loads. There was huge shift to the left on the order of 14" at 25 yards. I found this very odd. Once I dialed it in, it was very consistent even after the can was very hot.
When I swap .22lr cans out on different weapons I find that there is merely a minor shift downward. I tend to lose consistency after 100 rounds or so, when the can has heated up a lot. This is much worse if I run HV ammo, which I tend to avoid.
__________________
Thus a man should endeavor to reach this high place of courage with all his heart, and, so trying, never be backward in war.
|