Well, after a shooting session ,with my left handed Lyman .54 cal GPR., I`m convinced that I would be better off with a small caliber loader. I have had bypass surgery and i get chest soreness for a few days after I shoot my .54. I`m shooting .50 grs. in it , so really can`t load it down too much further. I have a .45 but here in Pa. you can`t hunt small game with it. So,is there much of a diffence in shooting a .36 verses a .40 as to loading problems and target shooting up to 100yds. Thanks in advance....