Well, I am in a bind right now for SD/HD ammo. I am wondering if I should go with... 124grain +P gold dots, (1,225 fps/M.E. 413 ft. lbs.) Or 147grain +P+ gold dots, (1,175 fps/M.E. 451 ft. lbs.) Or even 124grain +P+ gold dots. (1,300 fps/M.E. 461 ft. lbs.) What would I be better off with? (penetraction/expansion) This ammo will be used in a g4 G17. As of now I have some 127grain JHP +p+ winchester T.