One of mine lasted two weeks.......had everything to do with dropping it on the floor and stepping on it......so don't step on it and don't drink while reloading as calgarysparky pointed out. I've seen no wear from feeding bullets ......
I tried a 3D printed shell holder, once........not a good place for plastic......ripped a case right though it, first try, sizing .9 mm. Doh! Saw that on Thingiverse.....don't believe everything you see on Thingiverse.