Hello all, I have a question for the forum. I have an Argentine Mauser action that I want to put a barrel on and I am looking for a good cartridge that I can shoot cast boolits. I would prefer it to be a standard length cartridge. I will use this rifle for hunting Alaska size game. I already have a .375 Ruger and a .35 Whelen so I am thinking of something in the .40 caliber range. Anyone have any ideas? Thanks.