I am interested in barrel length testing that might help me. Can you provide me with some data on the three barrel lengths that you offer in the SBE(24,26,28). I would like to know if the newer faster burn times in powders today have given a edge to the shorter barrel lengths to carry and shorter gun and still have the shot pattern and speed in 3 1/2 mags? For example the Remington Hevi-Shot 3 1/2" BB's for geese.