.308 ballistics...


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ny32182
October 15, 2004, 09:05 AM
In common .308 bullet weights, how does the velocity compare between 16", 18", and 21" barrels?

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Zak Smith
October 15, 2004, 01:58 PM
Here's a couple:

150gr. Standard about 2700fps from 20" bbl.
21": 2743fps
20": 2712fps
18": 2643fps
16": 2563fps

168gr standard about 2600fps from a 20" bbl
21": 2631fps
20": 2603fps
18": 2541fps
16": 2468fps

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