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Old 11-11-2017, 08:45 AM
Full Curl Earl Full Curl Earl is offline
 
Join Date: Jun 2007
Location: Northern Alberta
Posts: 1,704
Default Well

Where did you arrive at 10 fps? Or did you mean 10%? There are a lot of variables to consider to have been able to arrive @ 10 FPS. For instance, the differenace in a 1:8 vs 1:14 will not be the same. Putting a projectile into a forced tight spin is detrimental to bullet skins, speed and barrels, and lighter projectiles in a good barrel don't require it, in my opinion, so what would be the positive trade off? I can't think of one really, but there may be
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Twist rate has a negligible effect on bullet speed, under 10fps. As stated earlier, slower twist rates prevent thin-jacketed bullets from spinning apart under excessive centrifugal force.[/QUOTE]
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