First off I've found a pretty good load 6.4 gr with 230 gr fmj. What I don't like is that fired cases have char marks on the outside. Everything I've read is it gets better closer to max which would be 6.8 or so. Anyone running into this issue? Loading them to coal of 1.25. I'm a huge fan of Vihtivouri n 320 with 9mm really clean and soft shooting at near max. Anyone load 45 with it?