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Old August 29, 2019, 08:44 AM   #7
MTT TL
Senior Member
 
Join Date: October 21, 2009
Location: Quadling Country
Posts: 2,670
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.
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