Originally Posted By: King Brown
I think the youngest of my old doubles is 75-plus years. Some more than 100. Old wood. I believe Kent bismuth is around 9,900, more than I want for my Elsies and Parkers. Kent TM must be considerably more from the way it pushes me back.



King that chamber pressure is directly from Kent. Their 12 gauge 1 1/4 oz. produces 9,900 psi. Now their 1 3/8 oz. load produces over 11,000 psi. That's what is probably pushing you back.