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.308 Winchester vs. 7.62x51 NATO round Are they really...

SplineSpider
SplineSpider Discussion started by SplineSpider 12 years ago

ammo for sale



OK I have seen this all over the internet. "NEVER shoot 7.62x51 NATO ammo in your rifle chambered for Winchester .308"!!!!!  I have seen the diagrams showing the difference between the shoulder and the shoulder thickness and the length of the case neck and the fact that it allows the bullet not to seat properly in the chamber and the case head can be riped off. and the case can separate in the middle.

 

I guess I am a lucky idiot because I have shot both in my rifles chambered for .308 Winchester for years without any adverse consequences. I do not own head-space go and no-go gauges however I am familiar with such gauges as I have worked around precision machining all my life.

 

So, opening this can of worms. What say you shooters/reloaders? IS this practice as dangerous as warned on the internet? are there not a lot of wildcat chamberings that the brass is formed by fire-forming the brass to the action? As in the Lott chamberings?

.308 Winchester vs. 7.61x51 NATO
ammo for sale

Replies
4
zfk55
zfk55 Yep. BMSS is right on. The only real difference that you'll definitely need to pay attention to is your load data. The commecial brass will have a... Show more 13 years ago
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Larry
Larry The real difference with military and civilian chamberings is the pressure limits. They are different for each spec. also I think the throat on 5.56... Show more 12 years ago
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caveatimptor
caveatimptor Comment for 5.56/.223. Has to to with pressure. Look @ it this way is the best discription. .357 magnum vs. .38 special. You may shoot .38's through... Show more 12 years ago
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