Post,

Thanks for the replies with regard to powders and pressure signs.

The velocities were (to the best of my memory):

335 gr:

50 Beowulf ~ 1750 fps
500 S&W ~ 1720 fps

420 gr
50 Beowulf ~ 1520 fps
500 S&W ~ 1540 fps

Some of the 50 Beowulf brass was showing a concentric ring all the way around the web, which I was told was due to excessive pressure. Does that sound right?

AC