Originally Posted By: Drew Hause
Per the 1954 Rules of Proof, here are the equivalent service pressure values:

3 1/4 tons--9,682 psi

BUT the 1954 numbers were also measured by lead crusher units (LUP) rather than transduced psi, which would be about 10% psi higher.



RevDoc Drew,
Bro Larry gracefully corrected me on my bar numbers earlier.
After seeing your last post, I was making the same crusher mistake for tons.

Bro Larry,
I never have figured out what model my 28ga is. The action is much more rounded than the 720's and 728's I have seen. Also there is no engraving but it has knock out wood.

Thanks,
Bill

Bill Johnson