Here is some testing of Buffalo Bore .357 mag 180gr loads, in various guns. http://www.gunblast.com/MilesFortis-...uffaloBore.htm
Using a NEF single shot, the 180gr load was over 1900fps, and averaged 1884fps.
Buffalo Bore claims this load is safe for ALL guns, allbeit, a tad uncomfortable in lighter revolvers. http://www.buffalobore.com/index.php...t_detail&p=100
What PSI or CUP rating are they loading to? The ratings of yesteryear??
What powder and primer combo is going to achieve this velocity?
Seems to be a pretty fast load for a pill that heavy.