Ambrose Member Posts: 3,128 ✭✭✭
edited September 2014 in Perry Shooter Competition Shooting and Reloading Forum
I've been working with a new-to-me 7x64 rifle and bought a box of 50 Hornady cases. The local shop had a box of Remington cartridges so I got those, too. Loaded some of the Hornadys and shot them and some of the Remingtons, too. Out of curiosity, I weighed some of the cases. I was surprised to find the Remingtons weighed 204 gr. and the Hornadys, 184. Now, I've often heard cautions about reducing loads when using military brass since supposedly military brass is thicker and has less powder capacity but I don't recall 20 gr. difference in military vs. commercial in .30/06. 20 years ago, working with the similar .280, I was using Remington brass but acquired a couple boxes of Norma cases. Firing reloaded Norma cases alongside of Remingtons with the same load produced 80 to 110 fps less velocity per my Oehler depending on the load. Weighing the cases, the Normas were again 20 gr. lighter than the Remingtons. Probably no big deal, switching from heavier to lighter cases, you just lose 100 or so fps, but the reverse might create a nasty surprise! I know I'm going to do more case weighing from now on.