Quote:
I will unveil the cartridge when i get back my letter from the ATF .Plugged in some numbers in recoil calculator, a sixteen inch bull barrel will potentially, with a expansion ratio of 8 to 9 produce recoil at a velocity of 45 fps and 300 ft pounds of recoil, so, problem is solved! Go with longest heaviest barrel possible
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With numbers like that you are either using an ultralight design, or a round that I wouldn't want to use in a Mossberg 695 action. Not a lot of metal on metal interference keeping that bolt in place, kinda like a really big 22 rifle where the bolt handle is the locking lug.
Of course I don't know what you are trying to do, so this is all just guesses on my part.
Jimro