I've shot well over 1000 rounds of the LAX .41mag and have never had a problem. I haven't bought any for awhile, hope they haven't changed.
Tonight or this weekend I'll post some pictures of LAX ammunition that I bought in 44 magnum and special and we can see how the crimping compares. I don't know anything about reloading or crimping. Not sure if crimping is done differently on these rounds since they are lead with copper plating, and not FMJ.
I've used a very small amount of Lax 10mm and 44 mag so far and haven't had any issues. Deg. don't want a kaboom.