I have about 3,000 frustrating rounds through my X5 now. I have gotten severe leading ever since I got it.
First batch of bullets were Gallant, Then Brazos, now BBI. all sized .356 and all lead pretty bad after 200 rounds.
I finally slugged my bore last night and got .3564". Guess I need to order some .357's and try those.
Side note: I thought it might be my Lee FCD causing this so I ditched it and went back to the Dillon crimp die. Didn't change a thing. Me and Choreboy have become good friends.