Quote Originally Posted by Alfred View Post
13,000 PSI is a lot more than 4% of 49,000 PSI.

The 7.62 NATO chambered rifles would be safest if used only with taylored handloads that did not exceed the 49,000 PSI Maximum SAAMI specs for the .303.
Alfred,

CIP lists using the piezo method 53,000PSI for the 303 Britishicon or for the copper crusher method 46,000CUP. Not too far off from the normal working pressures of 7.62x51mm NATO ammunition.

Since we know that all NATO standard ball ammunition is to balistically preform the same, we know the ~150gr loadings all run at about 50,000PSI (or atleast should run at that pressure to make sure it will work in any infantry arms in use by member countries), whether you want to take CIP's number for the 303 British which puts 7.62mm NATO ammunition in the safe zone or you want to use SAAMI's number which puts it 2% lower then NATO ball, its still too little to care about.

Quote Originally Posted by ireload2 View Post
And yes Winchester IS the final design authority for the .308 Win cartridge.
SAAMI is the standardizing body but Winchester OWNS the design.
SAAMI is a bunch of ammunition manufacturers that self-regulated so the government wouldnt do it for them.

And the 308Win just like the 7.62x51mm NATO is owned by no one. US law prohibits the government from owning anything. Whatever they create as its a public "work" and since the military developed the 7.62x51mm NATO first, any and all claim that Olin owns the 308Win is obserd as Olin copied the military's new ammunition and sold it with their own name. But due to the prior "work" cause, even if a patent could have protected Olin and gave them legitimate ownership of the round, the prior work clause would have made the military's original public work be considered the first leaving Olin with no protection.

Alan, Ed,

One of you two wouldn't happen to have a dimensional drawing for the No4 receiver would you?

Dimitri