Even the 405 comes back with full house #1 style loads. I was getting 2450 to 2500 ft/sec with a 300 grain bullet, which is about 200 to 250 ft/sec over factory.
I imagine the 450/400 would do likewise.
"Keep thy heart with all diligence; for out of it are the issues of life." (Prov 4:23)
