I will delve into that one.In regard to handloading for auto-pistols, one thing I've learned that you don't see addressed often is the seating and crimping operation. Ideally, seating should be done in one separate operation, then crimping as a final step. Why? Because you cannot get an accurate taper crimp while the bullet is still moving down in the case during seating. Dillon Precision clearly outlines this in their manual, and after some testing myself with the same ammo on another press that seats/crimps in one operation, the flaw was obvious. Not so critical in revolvers, but still an issue when roll crimping too.
The other detail is to mic the loaded round O.D. after bullet seating, measuring at the mid-point of the seated bullet. In .45ACP, it should mic .469", and Wilson Combat has that stated in their book "The Combat .45ACP". A "too fat" load will not chamber properly, and will prevent the slide from going completely into battery. Ask me how I "discovered" that one.
Just two of the myriad of things to consider when handloading for pistols.