Barrel length- .257 Roberts and 7mm-08
Looking at having a custom gun done on a Mauser action that I have- POSSIBLY. Have decided on either the .257 Roberts or 7mm-08. What would be a good barrel length for these two? I am thinking that the -08 doesn't need much more than 20 to be effective. What about the .257? Would 20 be enough or should a 22 or 24 inch tube allow the cartridge to perfom at its best? I have been talking to a gunsmith, and am looking at getting another Mauser before I start the project so it may be a while. Any other suggestions on caliber that will fit into the Mauser magazine with ease? Suggestions are greatly appreciated, still in the planning and debating phase. I am about due for another gun, its been 10 months. Thanks guys.