You sir want a Sherman Max, it’s a line of cartridges that use the SAUM as a parent cartridge. I’m currently building a 338 Sherman Max with a Bartlein 22” left hand twist barrel on a long action so I can seat bullets long as possible. The cartridge excels in short barrels and Allterra arms has...
You should check out Sherman Wildcat Cartridges his SS and Max lines are probably right up your alley they are best in short or mid length actions. Alterra arms has done tons of testing on the SS and Max cartridges and they are getting ridiculous results with short barrels. I’m building a 338...