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Posted: 3/5/2021 9:48:55 PM EDT
I can’t find a clear answer on wether or not you can use 7.62 ammo in a Rainier Arms Ultramatch .308 Mod 2 barrel. Does anyone have a definitive answer?
Link Posted: 3/5/2021 11:54:14 PM EDT
[#1]
.308 is higher pressure than 7.62x51....so yes, you can run 7.62x51 ammo in a .308 chamber.

It’s the opposite of 223 vs 5.56
Link Posted: 3/6/2021 12:08:40 AM EDT
[#2]
What about the headspace?
Link Posted: 3/6/2021 3:06:51 AM EDT
[#3]
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Originally Posted By Micahkh:
What about the headspace?
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You are good to go 100%.
Link Posted: 3/9/2021 10:19:08 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Micahkh:
What about the headspace?
View Quote


My understanding and research is that the 7.62 & 308 cases are the same, unlike the 5.56/223.
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