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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Let's NOT argue about BC's
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<blockquote data-quote="Topshot" data-source="post: 479633" data-attributes="member: 13285"><p>One of the things that I have found that alters a way that a rifle will shoot is the way it rides on the rear beanie bag under recoil.</p><p> </p><p>On a typical hunting style rifle stock, the area where the beanie bag contacts the stock has quite a downward slope. </p><p> </p><p>If the rifle is permitted to come back under more or less, free recoil, the stock tends to slip back and downwards. The barrel then tends to rise and the shot will go high.</p><p> </p><p>If the rifle is loaded up with a bit of forward pressure into the recoil pad and bipod, by the shoulder. Then the stock tends to come back straight into the shoulder and not slip back and downwards on the rear beanie bag. The barrel also does not rise as it does under free recoil and a better sight picture is maintained.</p><p> </p><p>With my 14lb .338 Edge I have found the the difference between the two hold methods makes a change in POI between 1 MOA and 1.5 MOA at 1000 yards.</p><p>This is a significant change in <span style="color: black"><strong>apparent</strong></span> trajectory, that has nothing to do with B.C. and everything to do with marksmanship.</p><p> </p><p>Throw into the mix that the 100 yard zero is obtained from off a bench rest which is different again to shooting off a bipod and things can get complicated quickly and assumptions can be made that may not be correct.</p></blockquote><p></p>
[QUOTE="Topshot, post: 479633, member: 13285"] One of the things that I have found that alters a way that a rifle will shoot is the way it rides on the rear beanie bag under recoil. On a typical hunting style rifle stock, the area where the beanie bag contacts the stock has quite a downward slope. If the rifle is permitted to come back under more or less, free recoil, the stock tends to slip back and downwards. The barrel then tends to rise and the shot will go high. If the rifle is loaded up with a bit of forward pressure into the recoil pad and bipod, by the shoulder. Then the stock tends to come back straight into the shoulder and not slip back and downwards on the rear beanie bag. The barrel also does not rise as it does under free recoil and a better sight picture is maintained. With my 14lb .338 Edge I have found the the difference between the two hold methods makes a change in POI between 1 MOA and 1.5 MOA at 1000 yards. This is a significant change in [COLOR=black][B]apparent[/B][/COLOR] trajectory, that has nothing to do with B.C. and everything to do with marksmanship. Throw into the mix that the 100 yard zero is obtained from off a bench rest which is different again to shooting off a bipod and things can get complicated quickly and assumptions can be made that may not be correct. [/QUOTE]
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Let's NOT argue about BC's
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