Well...I am no engineer, gunsmith or machinist, but I did solve my problem...does anyone care? Sorry to distract from a man of science.
As for me I am just a bitter smoke eater that chugs through my days off playing with guns and having a few to many beers
Occasionally an idiot prevails....this is my story...
Got out to shoot with the "modified" Paladin block. It worked great and SOUNDED ubber quiet now. I can now use IMG 4227 and H110. A2400 still did not work in this gun. H110 was definitely the quietest with 4227 being a close second. No need for hearing protection now.... The A1680 was the Turd of the bunch and was noticeably louder to all that listened. So that powder is going in the trash.
I did not get any groups shot, but I have good load data now. 9.5 H110 gets me 1040fps and 9.5 of 4227 gets me 1007fps.
Thanks....carry on