Many to a Great majority of use are fully aware that there are differences with the 223 & 5.56 cartridges.
Recently I was checking the Headspace on a barrel and became rather alarmed when it came out to 1.4686.
No Go for the 223 cartridge is 1.466.
I started to double ck stuff and noticed the barrel being Stamped 5.56 1:8, OK.
While I've ck HS on 56 barrels before I did not recall one being this, loose?
Looked the specs up for 5.56 Headspacing and determined it does fall within spec.
Anyway, I came across a simple HS graphic and thought to post it for others.
Recently I was checking the Headspace on a barrel and became rather alarmed when it came out to 1.4686.
No Go for the 223 cartridge is 1.466.
I started to double ck stuff and noticed the barrel being Stamped 5.56 1:8, OK.
While I've ck HS on 56 barrels before I did not recall one being this, loose?
Looked the specs up for 5.56 Headspacing and determined it does fall within spec.
Anyway, I came across a simple HS graphic and thought to post it for others.
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