Minimum OAL for .308 in a AR10?

Gypsysteel · May 25, 2010, 09:44 PM

Hi guys, I've just finished loading a bunch of .308 for my AR10 and I had a old box of Sierra 125gr spitzers, was wondering since the OAL on these is only 2.67" is that too short to be fired safely from my semi auto?

steve4102 · May 26, 2010, 07:32 AM

SPECIAL NOTE ON CARTRIDGE OVERALL LENGTH “COL”
It is important to note that the SAAMI “COL” values are for the firearms and ammunition manufacturers industry and must
be seen as a guideline only.
The individual reloader is free to adjust this dimension to suit their particular firearm-component-weapon combination.
This parameter is determined by various dimensions such as 1) magazine length (space), 2) freebore-lead dimensions of
the barrel, 3) ogive or profile of the projectile and 4) position of cannelure or crimp groove.

wncchester · May 26, 2010, 08:05 AM

Put a few in a magazine and see if they feed-chamber properly. ??

Probably will.

oneoldsap · May 26, 2010, 07:21 PM

I've never seen a 125 with a cannelure , How are you crimping them ?

May 25, 2010, 09:44 PM	#1
Gypsysteel Junior Member Join Date: March 22, 2009 Posts: 8	Minimum OAL for .308 in a AR10? Hi guys, I've just finished loading a bunch of .308 for my AR10 and I had a old box of Sierra 125gr spitzers, was wondering since the OAL on these is only 2.67" is that too short to be fired safely from my semi auto?

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May 26, 2010, 07:32 AM	#2
steve4102 Senior Member Join Date: December 23, 2005 Location: Minnesota Posts: 2,952	SPECIAL NOTE ON CARTRIDGE OVERALL LENGTH “COL” It is important to note that the SAAMI “COL” values are for the firearms and ammunition manufacturers industry and must be seen as a guideline only. The individual reloader is free to adjust this dimension to suit their particular firearm-component-weapon combination. This parameter is determined by various dimensions such as 1) magazine length (space), 2) freebore-lead dimensions of the barrel, 3) ogive or profile of the projectile and 4) position of cannelure or crimp groove.

May 26, 2010, 08:05 AM	#3
wncchester Senior Member Join Date: December 1, 2002 Posts: 2,832	Put a few in a magazine and see if they feed-chamber properly. ?? Probably will.

May 26, 2010, 07:21 PM	#4
oneoldsap Senior Member Join Date: September 16, 2009 Location: I live in the foot of the Green Mountains of Vermont Posts: 1,602	I've never seen a 125 with a cannelure , How are you crimping them ?