[Drew Hause]

This should help Fred
https://www.shotgunworld.com/bbs/vie...p?f=5&t=366087

Detailed information (mostly courtesy of Dave Suponski) regarding the named Parker steels is here; scroll down about 2/3
https://docs.google.com/document/d/1...EK8OtPYVA/edit

Please let us know if you get an answer from Hevi Shot folks. There is no pressure information here, and I have not seen any published
https://www.hevishot.com/catalog/classic-doubles/