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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM Barrel Length
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<blockquote data-quote="JOSE A. MARINE" data-source="post: 175018" data-attributes="member: 9159"><p><strong>Velocity Gains..</strong></p><p></p><p>back when I did some testing on rimfires, I cut back a 30" barrel half an inch at a time. I stopped at a barrel lenght of 12. and found some very interesting data...</p><p> </p><p>velocity increased up to the 19.5 inches and then slowed down as the barrel lenght increased.</p><p> </p><p>with a barrel lenght of 19.5 inches, I had top speed, anything else longer than that only slowed the bullet...</p><p> </p><p>with the longest barrel I had the smallest ES.. dont know why, maybe factory ammo...(getting a good average for ammo?..)</p><p> </p><p>my 2 cents...</p><p> </p><p>Joe from Mexico</p></blockquote><p></p>
[QUOTE="JOSE A. MARINE, post: 175018, member: 9159"] [b]Velocity Gains..[/b] back when I did some testing on rimfires, I cut back a 30" barrel half an inch at a time. I stopped at a barrel lenght of 12. and found some very interesting data... velocity increased up to the 19.5 inches and then slowed down as the barrel lenght increased. with a barrel lenght of 19.5 inches, I had top speed, anything else longer than that only slowed the bullet... with the longest barrel I had the smallest ES.. dont know why, maybe factory ammo...(getting a good average for ammo?..) my 2 cents... Joe from Mexico [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 RUM Barrel Length
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