The real question is which round is best for bear when shooting a 3953.
More seriously, I plan to run some tests of 115 vs 124 vs 147 through a couple of my 3913s to see which, if any, hit closest to point of aim.
Right now I'm carrying 124gr JHP, but might change if one of the other loadings is better.
I think that in truth, any of the major brands of self defense ammo perform adequately for self defense.