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.308 barrel length

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Unread 11-25-2005, 10:07 PM
Junior Member
Join Date: Oct 2004
Posts: 24
Re: .308 barrel length

I've owned and shot several .308's, as that cartridge is my favorite little pet. I've found unless you need 22" or more as a handling issue (mostly in hunting rifles), anything over 21" isn't beneficial. Some would argue a barrel that short will hurt you out to 1000 yards. I've used Remington M700 LTR's with 20" barrels and a few custom sticks with 20" and 21" barrels and haven't ever had a problem getting a bullet out that far. No problems so long as the nut behind the trigger does his part, anyhow.

Accuracy-wise, my best groups have come from 20" barrels. I don't shoot BR, though, so my experience is tactical and hunting rifles only.
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Unread 11-26-2005, 05:26 PM
JDT JDT is offline
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Join Date: Aug 2005
Posts: 9
Re: .308 barrel length

I don't have a lot of experience actually shooting many .308's, so I'm only basing my answer off of "theory".

The .308 isn't a particularly "overbore" cartridge and will not, therefore, benefit as much from a longer barrel in terms of increased muzzle velocity and reduced muzzle blast. The muzzle velocity isn't going to be that much higher with a couple extra inches of barrel and the muzzle blast isn't that bad anyhow.

The increased weight as well as the reduced rigidity and manueverability will probably outweigh the benefits of a longer barrel more quickly with a .308 Winchester than it will with more "overbore" cartridges.

If high velocity is a significant concern of your's, you might want to consider a different cartridge.
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