Vance, I'd probably swing towards the 450 a little just because of case life, I never had a head seperate in my contender or bfr and the bfr I loaded to 450 velocities but I had regular problems in my marlin 1895, my brass would last about two to three loadings max before they would seperate, in fact I started carrying a case extractor with me everytime I took it out.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist