Re: Berger vs sierra bt
I have seen that heavier bullets almost always hit higher, but I don't think it is a result of the barrel flexing as much as it the shooter flexing. I first observed it shooting a 44 mag pistol and the heavier bullets hit higher than the lighter by several inches at 100 yards. The heavier bullet is slower getting going and stays in the barrel longer and it leaves the barrel after you have been rocked back more by the recoil.
Try laying a sandbag over the barrel and see if it changes the POI. 5 1/2" is a lot more than I would have expected thou. Try it again at a longer distance and see if one of the bullets isn't flying wild. You may have something else going on, like under sized bullets. I know it is rare, but it has happened. By trying to make it repeat you may also find a scope loose or something.
Best of luck and let us know what you find.
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