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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
FPS or velocity from gun to gun
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<blockquote data-quote="Beelzebub" data-source="post: 787326" data-attributes="member: 29392"><p>I have a Model 7 in 243 and a Model 70 in 243 that the barrels seem almost identical. The same reload shoots under .4 in both guns. With barrels being almost equal, can I expect the same velocities from both guns?</p><p> </p><p>Now, What if I move up 6" in barrel length and still shoot the faster burning 3031 that shoots so well in my shorties?</p><p> </p><p>Here's what I'm getting at. If I see reloading data in a book or on the internet and the data is compiled using the same barrel as mine, can I expect fairly close velocity out of my identical barrel. I don't have a chronograph and am trying to figure out how to make an educated guess when figuring out my "come up-ins" for given bullets. I guess a $100 chronograph would be the best way though?????</p><p> </p><p>Thanks for any advice,</p><p>B</p></blockquote><p></p>
[QUOTE="Beelzebub, post: 787326, member: 29392"] I have a Model 7 in 243 and a Model 70 in 243 that the barrels seem almost identical. The same reload shoots under .4 in both guns. With barrels being almost equal, can I expect the same velocities from both guns? Now, What if I move up 6" in barrel length and still shoot the faster burning 3031 that shoots so well in my shorties? Here's what I'm getting at. If I see reloading data in a book or on the internet and the data is compiled using the same barrel as mine, can I expect fairly close velocity out of my identical barrel. I don't have a chronograph and am trying to figure out how to make an educated guess when figuring out my "come up-ins" for given bullets. I guess a $100 chronograph would be the best way though????? Thanks for any advice, B [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
FPS or velocity from gun to gun
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