i decided today that i would put my lcr through a test, i only have freedom munitions 9mm hollowpoint reman ammo. i have 60 boxes of it as i bought it to shoot through my ex nano. after selling the nano i found the lcr 9mm and bought it. after buying it i heard about crimp jump and almost sold it for peace of mind. today i ran a test of 115 grain, 124 grain and 135 grain all reman freedom munition hollow points. out of a box i had a few crimp jump with the 115 grain on the 5th round, none were completely out but very close, not every cylinder full jumped but enough that i'm glad i have no more 115 grain. the box of 124 grain jumped once in a box and it was also shootable and not out of the case, i have several more boxes of these and i believe these will be ok. i did not have a single crimp jump with the 135 grain box, i will be getting this from now on. i didn't have 147 grain to try but if i get some i will update. also is it normal to have more recoil with heavier ammo? it seemed the recoil in the 135 grain was a little more, not a whole lot but noticeable. thought i would put this little thing to the test today, it's my regular carry and i needed to have peace of mind. it is loaded now with 135 grain. the trigger is amazing, my brother inlaw has a smith j frame and has said he wished his was this smooth. thanks