Thank you for your input. the gun is still in proof and @ 6# 14 oz. 1 1/4 oz loads are out of my pain threshhold, I was just going by the tables in the article. I also didn't think about it until this morning but therew was no differance shown for 65 or 70mm chambers. I welcome any opinions based on real world expeiriance. Hot roddind agood old gun is NOT my intention. Thanks again.