Yes I have had to move the bullet in to clear the leed. It is exactly where you have it. For 380 I keep it a bit deeper for the same reasons.

The P1 s problems may be from the design of the magazine or some interaction with the ledges of the SWC.

I am hoping that someone has some experience as to which bullet (mold) they use for for their p1.

I am hesitant about using a TC design. I have tried some Berry 124 TC designs and the same thing occurs. by the time the bullet will seat it is too short. I have shot some RN Berry 124 through the P1's fine.

I sure like looking at targets with the paper punched holes that the swc gives but these 105s are a bit too stubby.