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MR-7-45 · January 31, 2012, 11:28 AM

Just do a search for .308 win vs 7.62 and you get a lot of hits. This topic has been debated for at least 10 years or more.

The short answer seems to be that if you use new .308 Win in a M1A, it will probably work. However, it isn't recommended in a military surplus 7.62. I don't think there are any M-14's sold to the public. I wonder if Springfield Armory manufactures the M1A to a higher specification than the M-14 to handle the .308. Reloading .308 Win cases that have been fired in a 7.62 can experience separation at the neck/shoulder or separate at the web.

One site http://www.cruffler.com/trivia-June01.html points out that not all NATO standard is standard. Interesting reading.

I have fired a lot of milsurp without any problems yet. I have reloaded the milsurp brass to .308 specs without any problem (yet).

January 31, 2012, 11:28 AM	#13
MR-7-45 Member Join Date: October 4, 2005 Location: Central Texas Posts: 70	Just do a search for .308 win vs 7.62 and you get a lot of hits. This topic has been debated for at least 10 years or more. The short answer seems to be that if you use new .308 Win in a M1A, it will probably work. However, it isn't recommended in a military surplus 7.62. I don't think there are any M-14's sold to the public. I wonder if Springfield Armory manufactures the M1A to a higher specification than the M-14 to handle the .308. Reloading .308 Win cases that have been fired in a 7.62 can experience separation at the neck/shoulder or separate at the web. One site http://www.cruffler.com/trivia-June01.html points out that not all NATO standard is standard. Interesting reading. I have fired a lot of milsurp without any problems yet. I have reloaded the milsurp brass to .308 specs without any problem (yet).