Weird jam

[svandamme]

It's lubed with FP10 every 100 rounds
Crimp seemed fine, once the jam cleared i re-fed the round that was in the chamber when it initially jammed.. The second time it went through without a problem.. really weird.

Previous time, i had this issue, i got the round out
retried with another round from the same batch, same problem
got the round out again
put in a snap cap , no problem, hammer fell on the snap cap
got original round in a gain, same problem re-occurred
snap cap back in, no problem , hammer falls
Got a factory round in there, same problem again
out with the round
racked the slide a good 5 times without letting it slam on an empty chamber to badly..
loaded the factory ammo, gun fires
then i ran 3 mags of factory ammo , rapid fire, no problem
in with the original round of the 1st jam, goes through without a problem

i'm like huh?!