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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Anyone seen or tried these new scopes just featured....
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<blockquote data-quote="Bart B" data-source="post: 107028" data-attributes="member: 5302"><p>[ QUOTE ]</p><p>Regarding barrel wear you make it sound like after a couple of hundred rounds you can't duplicate the same velocity of a new gun?</p><p></p><p>[/ QUOTE ]With the same load specs with a way overbore powder charge, a 25 fps drop in average muzzle velocity can happen in a few hundred shots, especially when pressure is very high with a lot of powder. There's less resistance to the bullet as the throat erodes away. At 1000 yards that could mean a 7 to 10 inch change in bullet drop. So the reticule marks are no longer perfect. </p><p></p><p>You can duplicate the original muzzle velocity with a bit more powder.</p></blockquote><p></p>
[QUOTE="Bart B, post: 107028, member: 5302"] [ QUOTE ] Regarding barrel wear you make it sound like after a couple of hundred rounds you can't duplicate the same velocity of a new gun? [/ QUOTE ]With the same load specs with a way overbore powder charge, a 25 fps drop in average muzzle velocity can happen in a few hundred shots, especially when pressure is very high with a lot of powder. There's less resistance to the bullet as the throat erodes away. At 1000 yards that could mean a 7 to 10 inch change in bullet drop. So the reticule marks are no longer perfect. You can duplicate the original muzzle velocity with a bit more powder. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Anyone seen or tried these new scopes just featured....
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