Just a "heads-up" for my fellow reloaders. With the whitetail hunt coming up here in Ontario, I started to reload some .308. I grabbed some RP and PMC brass just to see if the different brass would have any bearing on a proven load. Well! I'm loading 45 gr. of Accurate 2495. When I dumped the powder into the PMC case, it was nearly to the top, so getting into compressed load territory. I set up my other scale to check a balance beam against the electronic one, and yup, they're both at 45 gr. The same powder charge in both RP and Winchester brass leave good room for the projectile so the conclusion is obvious. Like my IVI brass, the PMC seems to have a thicker walls and less case capacity than most commercial brass. I'll keep my IVI and PMC brass for powder/projectile combinations around the 42 gr. mark. Just thought I'd share my experience.
PMC Brass surprise
- Thread starter LawrenceN
- Start date
I have found PMC brass works well in a number of different calibers.
Don't get me wrong, it's good brass. I haven't sectioned a case but I'd be willing to bet it's thicker walled and thicker base like the IVI stuff as compared to regular commercial brass.
Not surprised by your findings. I have found a lot of differences in the capacities of commercial brass. R-P 4570 I find holds less than other brands. Winchester the most. This is loading black powder in them. 223 Winchester bras in thinner than others. 30-06 Winchester brass is thinner. 38-55 I have noticed different volumes also.
Bought a bunch of once fired 7.62x39, same thing
fingers284
CGN Ultra frequent flyer
- Location
- Alberta Cowboy Ranges
I have noticed no difference between my PMC & Bertram 45-90 brass
