L3n4rd,
The load on the barrel is the proof load and can't be compared to any duty loads.Twist in German rifles is now shown as 1 twist in x mm (ie 1 in 250mm).You can resize the .366" bullets to .362" if you want, but the reason I suggested trying the bullet in a fired case was to see if it would cause a great increase in pressures.I use .321" bullets in some rifles with .318" barrels, because they fit into a fired case.In another case,I size .321" to .318", because the .321" bullet won't fit into the fired case.This is short, because I'm having computer problems and this is the third try.
Mike