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Old 02-26-2008, 07:39 AM
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roger roger is offline
 
Join Date: May 2007
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Quote:
Originally Posted by Salvelinus View Post
The Vanguard only comes with a 24" pipe. Does the extra 2" make that much of a difference?
I have 2 257wbys and different bbl lengths, a 24" and a 26"
i was at dick284's and we put the same ammo through each gun and it measured eggzactly 100fps less
Dick what was that equation that multiplys velocity by bullet weight???
257mag...100gr x 3600fps=360000
270.........130gr x 3100fps=403000
45-70......400gr x 1700fps=680000
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