Home Forums Hunting & Shooting Long Range Hunting Which 6.5mm cartridge and why?

Checked my notes again that he gave me, I made a mistake, the velocity was 3550-3600, depending on the barrel, 26" barrels only.

One guy had a 28" barrel and he was getting 3650. The Gunsmith had a special name for the cartridge that he had made up, but it was a 6.5/7Mag AI. They were using Weatherby 257 brass, which is soft. I got them some 257 Weatherby brass made by PMC, and they were all very happy because it is MUCH harder and would take the pressures.

I have no actual experience with the cartridge, but he did show me targets with Ohler 35P print outs of the velocity. More important, the guys standing there were the testimony of what the cartridge would do.

I was able to best his wild cat with my 7 STW shooting the 140's at speeds I won't speak of using PMC 300 Weatherby cases, which are tough as nails.

Pacific Tool and Grinding made this guy's reamers, that is where I would start to do the research on...they keep files on reamers and will mail a print.