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Rifles, Reloading, Optics, Equipment
Reloading
Best powder for short barreled 308
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<blockquote data-quote="Buttermilk" data-source="post: 796630" data-attributes="member: 5262"><p>As already mentioned, the same powder that gives highest velocity in a rifle will normally give the highest velocity in a short barrel.</p><p></p><p>I used Varget in a 15" barrel .308 Win with great success.</p><p></p><p>Without getting into a debate on fast vs slow powders in short barrels, I've shot a lot of different powders thru short barrels (currently don't own a rifle and shoot only 15" to 16.5" T/C Encore and XP100).</p><p></p><p>In my experience, the same powders listed as giving highest FPS in rifles also give the highest FPS in shorter barrels. There are some exceptions. But typically that's the case.</p><p></p><p>In my 280AI 16.5" long IMR7828ssc gave me the fastest FPS when compared to some faster burning powders. That's just one example. I've chrono'd nearly all my loads at the range, and as I've said, that's typical, though there are some exceptions. </p><p></p><p>In most cases, maximum peak pressure occurs within the first three inches of the barrel. This is why even in short barrels, the same powder type produces the highest FPS in both short and long barrels. The longer barrel simply contains the solid state matter converted to a gaseous state for a longer period allowing it to push on the base of the bullet for a longer time thus producing more FPS in the longer barrel. Short barrels do tend to display more muzzle flash due to the burning gases exiting a shorter barrel.</p><p></p><p>Check out some loading manuals that have a handgun section that includes loads for the 308, 7-08, etc.</p><p></p><p>I'd load some Varget and go have some fun.</p><p></p><p></p><p></p><p>Regards</p><p>Rog</p></blockquote><p></p>
[QUOTE="Buttermilk, post: 796630, member: 5262"] As already mentioned, the same powder that gives highest velocity in a rifle will normally give the highest velocity in a short barrel. I used Varget in a 15" barrel .308 Win with great success. Without getting into a debate on fast vs slow powders in short barrels, I've shot a lot of different powders thru short barrels (currently don't own a rifle and shoot only 15" to 16.5" T/C Encore and XP100). In my experience, the same powders listed as giving highest FPS in rifles also give the highest FPS in shorter barrels. There are some exceptions. But typically that's the case. In my 280AI 16.5" long IMR7828ssc gave me the fastest FPS when compared to some faster burning powders. That's just one example. I've chrono'd nearly all my loads at the range, and as I've said, that's typical, though there are some exceptions. In most cases, maximum peak pressure occurs within the first three inches of the barrel. This is why even in short barrels, the same powder type produces the highest FPS in both short and long barrels. The longer barrel simply contains the solid state matter converted to a gaseous state for a longer period allowing it to push on the base of the bullet for a longer time thus producing more FPS in the longer barrel. Short barrels do tend to display more muzzle flash due to the burning gases exiting a shorter barrel. Check out some loading manuals that have a handgun section that includes loads for the 308, 7-08, etc. I'd load some Varget and go have some fun. Regards Rog [/QUOTE]
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Best powder for short barreled 308
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