Ever head out to do some shooting and notice that your rifle’s point of impact is slightly different than your last range visit? It’s usually not a big difference, but it’s also not uncommon for the zero to wander anywhere from one-half to one-inch.
I blamed the optic mounting system for this issue for years, as do many shooters I know. I figured the scope moved in the rings a tiny bit or the rings or base shifted some. While all those potential issues are somewhat valid (especially when using poorly made equipment), the far more likely scenario is the presence of parallax inside the scope.
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