If I were going to do a SA 7 mm -08 wildcat this is the case I'd use..
Here is a 6.8 ×51 hybrid case just mandrel from .277 to .284" -.002" approximately and seat a bullet, and shoot.
It will handle up to 80,000 psi if wanted.
Give you 7mm WSM performance if wanted.
2.875" and 2.950" depending on your needs with the 7mm 180 gr Berger.
Noting in .470 dia case will be faster than the hybrid case.
I use the hybrid case for a number of cartridges in the 308 family.
The 6.5 CM with this case will run 140 gr match at 3150, or 150 gr SMK at 3000 fps, in 24" barrel. or 308 W 200 SMK at 2900 fps in 30" barrel.
There is a big advantage to the hybrid case.
It gives more room to find an accurate, high velocity load below maximum and still be way ahead of other 308 dia case head cartridges on the market.
Something to consider when choosing your wildcat, or standard 7mm-08 for performance.
Here is a 6.8 ×51 hybrid case just mandrel from .277 to .284" -.002" approximately and seat a bullet, and shoot.
It will handle up to 80,000 psi if wanted.
Give you 7mm WSM performance if wanted.
2.875" and 2.950" depending on your needs with the 7mm 180 gr Berger.
Noting in .470 dia case will be faster than the hybrid case.
I use the hybrid case for a number of cartridges in the 308 family.
The 6.5 CM with this case will run 140 gr match at 3150, or 150 gr SMK at 3000 fps, in 24" barrel. or 308 W 200 SMK at 2900 fps in 30" barrel.
There is a big advantage to the hybrid case.
It gives more room to find an accurate, high velocity load below maximum and still be way ahead of other 308 dia case head cartridges on the market.
Something to consider when choosing your wildcat, or standard 7mm-08 for performance.