Ok. Just a point of clarification, since you said it twice. The above from BBTI is NOT energy, it is VELOCITY in fps.

Another point of reference, the .44 mag 240gr hydra shock load clocked in at 1,296 fps from a 6.5" model 629 and only 1,094 fps from a 4" model 629. These are velocities, not energy. The point is magnum revolver cartridges apparently lose A LOT when stepping down to a 4" barrel. It dropped off 202 fps, which is a bunch.

I own several magnum revolvers and only one 10mm, so I don't think it is bias on my part.

Last edited by K1500; 11/27/14.