The primary limiting factor to the breech pressure attained in the 10mm is not the standard (i.e., unramped) barrel, but rather the case construction.
Remember that the 9x23 Win (55K PSI) was successfully produced in the standard Colt 1911 GM without a ramped barrel. No blowups as far as I know, but a suitably constructed case.
Last edited by Wildcatter264; 04/20/17.
Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it Almighty God! I know not what course others may take, but as for me, give me liberty of give me death! P. Henry
Deus vult!
Rhodesians all now
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