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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 CM Savage Mod 10
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<blockquote data-quote="Trickymissfit" data-source="post: 1088024" data-attributes="member: 25383"><p>mostly depends on case volume and bore diameter. A fine example is the .223 Remington case. I cut a barrel from 26" down to 20", and saw a loss of 75 fps (loads were not max either). I could probably gain half that 75 fps back with another half grain of powder. I shoot a 6mm/250AI. Nothing but a 250AI necked down to 6mm. My barrel is 26.5" long in a contour slightly heavier than a #7. Shoot great, but could probably do just as well with a 24" barrel, and maybe even a 23" barrel with the right powders and lighter bullets.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1088024, member: 25383"] mostly depends on case volume and bore diameter. A fine example is the .223 Remington case. I cut a barrel from 26" down to 20", and saw a loss of 75 fps (loads were not max either). I could probably gain half that 75 fps back with another half grain of powder. I shoot a 6mm/250AI. Nothing but a 250AI necked down to 6mm. My barrel is 26.5" long in a contour slightly heavier than a #7. Shoot great, but could probably do just as well with a 24" barrel, and maybe even a 23" barrel with the right powders and lighter bullets. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 CM Savage Mod 10
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