Sorry to bring this thread back up but I have a question. I use this method mainly shooting lead. I ran into a problem when helping my brother load for his Sig 45acp. He wanted to load 185 grain hp/xtp. We pulled the barrel out and I started at max oal (1.275) and the round chambered and dropped out easily. The manuals I have all had a oal of 1.175 to 1.230. My experience with 180 lead bullets lead me to believe the round needed to be shorter to get a clean powder burn. I decided to seat them to 1.200 and use start loads. My question is what is causing the descrepancy between oals? Did I do the right thing in seating the bullet deaper or should I have stayed out at max? It didn't seem to make a difference on how deep the bullet was seated. They all chambered and dropped out of the barrel easily.