light bullets , heavy bullets, sighting in

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light bullets , heavy bullets, sighting in

Post by spurdude » Fri May 01, 2009 5:23 pm

To get to the question I want to get a an agreement first. It is common knowledge in handgun shooting, all thing being equal, that heavier bullets will shoot higher point of aim than lighter bullets. this is because the greater inertia the heavy bullet has, it leaves the barrel a little slower. the gun is in recoil flip mode and as the bullet leaves the barrel, the barrel being slightly elevated. the bullet strikes the target slightly higher. now if we can agree on that phenomenon , the question is... is it safe to say the same holds true for rifles? if say, at 100 yards( or 200) 300grn bullets are hitting center bulls eye of a target. would 500 grain bullets strike the target a few inches higher, thus increasing range (distance)? the second part question is: if this is all correct, a rifle sighted with lighter bullets zeroed at 100yards, and the heavier bullets are striking 6 inches higher... at what range will those heavier bullets zero?

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Post by Brent » Fri May 01, 2009 6:53 pm

That has generally been my experience. It is also the entire concept behind regulating double rifles. Barrel time is everything (or nearly so). In practice, it usually works that way but not always.