The Goal? Use a modern Brass to Create an even better Version of the 250 Savage in 6.5mm. Options are 22 Nosler Brass, 6mm Hagar Brass & 6.8 spc Brass. OAL would be in the neighborhood of 2.6". I call this the RPC 6.5mm, and I need to find a way to get one made without breaking the bank. I read where there was a 22-250 6.5mm and 250 Savage 6.5mm Wildcat decades ago. I will be restricted to either a 0.378 in or 0.442 rim size. Think Mini-Creedmoor. I have read where the Nosler 22 Brass and Hagar brass could offer considerably more power than the Grendel, which is limited pressure wise. What would you use to Ream the Barrel? Which is the best forming process for Brass? I need to best combination using existing components to save on costs.