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.338 velocity for different barrel length

 
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Old 02-09-2013, 07:17 PM
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.338 velocity for different barrel length

What would difference be for say 338 RUM or edge in a 27" barrel with brake vs 30" with brake? Shooting 300 grain pills of coarse.
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Old 02-09-2013, 10:18 PM
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Re: .338 velocity for different barrel length

Three inches.
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Old 02-09-2013, 11:28 PM
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Re: .338 velocity for different barrel length

Acording to this testing it should be somewhere around 50-60 fps.
Lilja Precision Rifle Barrels - Articles: Barrel Lenghts and Velocities in the 338/378 Weatherby Magnum
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Old 02-10-2013, 12:20 AM
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Re: .338 velocity for different barrel length

It is really hard to say as not all barrels are equal but I would not expect even 40fps in a truly equal barrel. I shoot a very mild 89.0 grain load of h1000 with 300grn in my edge with a 24" savage factory barrel and it nets a verified 2781fps. I can run 2850fps if I load it up to 92 grains. Between those longer lengths in that bore size, The difference will be very little.
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