GENTLEMEN:
YES, SHERMAN BELL HAS PUBLISHED A GOOD BIT OF VERY GOOD INFORMATION REFERENCE PSI OF BP LOADS AND OF EQUIVALENT SMOKELSS AMMO. I REGULARLY SHOOT METALLIC CARTRIDGE CO.BP 10 GA. LOADS THAT ARE IN THE 5900 TO 65OO PSI RANGE IN MY L.C. SMITH AND LEFEVER GUNS. POLYWAD ALSO NOW OFFERS SOME 2 1/2 INCH VINTAGER LOADS WITH A 12 GA. PSI OF 6500 WHICH SHOULD ALSO DO NICELY IN ANY DAMASCUS OR TWIST GUN THAT IS IN GOOD CONDITION.
TOM

Luck is the residue of good intention and hard work.