Got to thinking about load development in this long barreled Mama and wonder if anyone has any actual first hand experience regarding the effects of such a long barrel.
NOTE:
I can speculate and dream up theories like anybody else, but what I'm looking for is anyone with actual hands on experience...not somebody's 3rd cousin who told a friend who told a homeless guy who told a cop who happens to shoot smoothbores, etc...and definitely not interested in any claims of any 'formulas'.
FOR EXAMPLE:
Does a "typical" .12ga load produce the same results in this 72" barrel as it does in a 36" barrel...and I don't mean micro differences...I mean by and large would the same .12ga load give the same results in both barrels?
Or...would the powder charge have to be beefed up in the 6' barrel to handle the larger bore volume to keep the velocity up until muzzle exit?