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Message: <blockquote data-quote="Surveyor1653" data-source="post: 2825093" data-attributes="member: 5197">Any time you're shooting canted, you're going to experience a POI/POA shift regardless of the sighting system used. The physics remain unchanged. Consider:When shooting the rifle plumb to the ground and mag well down, the round leaves the barrel and traces a parabolic arc upward, then toward the ground, which results from the initial inertia of the cartridge firing and the inevitable effect of gravity.Now rotate the rifle 45° to the left. When you fire the rifle, the round still traces a parabolic arc but not into alignment with the mag well. Gravity is still pulling the round into the ground.So: Rifle at 0° equals an arc traced toward the ground through the projected vertical centerline of the gun. Rifle at 315° equals an arc traced toward the ground and to the left of the projected vertical centerline of the gun, giving a point of impact left and low.There was a really good YouTube video going around prior to one of the other events but:<a href="http://www.accurateshooter.com/optics/canting-effect-on-point-of-impact/" target="_blank">Here's an article with an illustration</a></blockquote>