150gr .308 through M1A?
- Thread starter Smeh
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Z-Michigan
Member
That's about what it's designed for...
I've put quite a bit of 150gr FMJ, several different brands, through my SA M1A with zero problems.
I've put quite a bit of 150gr FMJ, several different brands, through my SA M1A with zero problems.
W L Johnson
Member
Look at it this way, sent them to me and I'll give each and every one of them a test firing in my M1A and AR-10s. After wards I'll let you know how they did. 
If it's the pressure you're worried about, don't worry, 308 and 7.62x51(7.62 NATO) are the same pressure despite what some may say on the internet. They don't know the different between CUP (copper units of pressure) and PSI. 7.62x51 is 50,000 CUP not 50,000 PSI, this keeps coming up in forums. People keep changing CUP to PSI and tell you 308 will blow a 7.62x51 firearm. Now there is a slight head space difference, but you won't notice in most modern fire arms, it's old mil-surp's with border line head space that need to worry.
If it's the pressure you're worried about, don't worry, 308 and 7.62x51(7.62 NATO) are the same pressure despite what some may say on the internet. They don't know the different between CUP (copper units of pressure) and PSI. 7.62x51 is 50,000 CUP not 50,000 PSI, this keeps coming up in forums. People keep changing CUP to PSI and tell you 308 will blow a 7.62x51 firearm. Now there is a slight head space difference, but you won't notice in most modern fire arms, it's old mil-surp's with border line head space that need to worry.
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Howard Roark
Member
Most that shot M1As shot 150s at the short lines in high power competition.
1KPerDay
Member
Springfield will tell you it's perfectly fine.
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