50_Shooter,
Thanks for the info, much appreciated.
I suspected that the Yugo brass may not be the best bet for match loads. I have noticed that the cases vary my as much as 17 grains (for a given year lot). I planned on sorting them. Where is a good place to get IMI, PMC, or WCC brass? I have heard that PMC hasn't made any 50 brass lately and it is therefor scarce.
Thanks for the note about the AR-50 freebore. I was planning on measuring it this weekend. Do you know what the Barrett M99-1 freebore is like?
For the AMAX bullets, I was planning on starting around 205gr and working up from there. Hodgdon lists the max load at 233gr but Hornady lists it at about 215gr. Barnes matches Hodgdon's max. I figure that the discrepancy is due to case and freebore. So, I planned to work up slowly.
I know how to look for signs of high pressure in magnum rifle cartridges, but am not so sure that they apply to the 50BMG. The case head is obviously thicker as is the primer cup. Do you have any suggestions on what to look for in determining top pressure?
Thanks again