Designing My Last 7mm Cartridge

Thanks for the load data. I was thinking that

Thanks for the load data. I was thinking that N570 would be great with the 7mm Blaser Mag or others the same size. Has anyone tried that.

I'm sure n570 will, but from what I've heard it's a little harder on throats. Probably not a big deal in reality for a hunting rifle...

There are 3 pretty good 7 blaser threads on here from prior to 2019

I'll look for those

Ok, Here's the final chamber drawing that I will use. I also have a matching cartridge case drawing from Quickload. I haven't figured out Gordon's Cartridge Design tool yet. As with all my mods and wildcats I will send these to JGS Precision Reamers for final drawing and validation. You should too if doing something like this.

Based on the info I received from those running 7mm Blaser Improved Mag, which is close to this wildcat, I should be in the ballpark of 3180 fps with 162 gr bullets, and 3150 fps with 175 gr bullets, with a 26" barrel. My gut feel is it will be 20 - 30 fps slower than those numbers. As always I will have to find the accuracy node which may be at a lower velocity. We will see.

I'll report back in about 6 months after the build and my load development.