Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Spin and Performance
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Pdvdh" data-source="post: 248503" data-attributes="member: 4191"><p>I think the faster spin rates will produce more physical damage than the slower twist rates. But I don't shoot enough big game animals to ever prove it to myself, let alone others.</p><p></p><p>I doubt that the differences in bullet damage/destruction on a big game animal are substantial in fully loaded rounds with cartridges used for LRH. The bullet contruction itself is way more important than the rpms the bullet is spinning at, when loaded to full velocity - my opinion. I say this because the majority of bullets from LRH big game rifles are spinning within +/- 15% rpms. We're all sending them as fast as we safely can, while maintaining good accuracy. And the barrels commonly in use are 8-10 twist barrels. If someone's using a 6 twist or a 14 twist, maybe they'd see some obvious difference in bullet performance.</p><p></p><p>On the other hand, if we take a bullet that's normally launched at 3200 fps second and launch it at 1600 fps to replicate a 1000 yd velocity impact at 50 yds, then we've cut the rotational velocity by 50% and I wouldn't be surprised to see less damage at 50% less rpm spin rate. I could also believe the bullet may not expand/deform/perform identically at 1/2 the rpms while penetrating the animal, compared to a much higher rpm rate at the identical impact velocity.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 248503, member: 4191"] I think the faster spin rates will produce more physical damage than the slower twist rates. But I don't shoot enough big game animals to ever prove it to myself, let alone others. I doubt that the differences in bullet damage/destruction on a big game animal are substantial in fully loaded rounds with cartridges used for LRH. The bullet contruction itself is way more important than the rpms the bullet is spinning at, when loaded to full velocity - my opinion. I say this because the majority of bullets from LRH big game rifles are spinning within +/- 15% rpms. We're all sending them as fast as we safely can, while maintaining good accuracy. And the barrels commonly in use are 8-10 twist barrels. If someone's using a 6 twist or a 14 twist, maybe they'd see some obvious difference in bullet performance. On the other hand, if we take a bullet that's normally launched at 3200 fps second and launch it at 1600 fps to replicate a 1000 yd velocity impact at 50 yds, then we've cut the rotational velocity by 50% and I wouldn't be surprised to see less damage at 50% less rpm spin rate. I could also believe the bullet may not expand/deform/perform identically at 1/2 the rpms while penetrating the animal, compared to a much higher rpm rate at the identical impact velocity. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Spin and Performance
Top