I noticed someone mentioned the 280 Rem on this post. I have a Kimber-rebuilt 1938 CZ Mauser, originally chambered in 280 Rem. I had it rebored to 280 Rem Ackley Improved, with the blownout straight case and 60 degree shoulder. It sends out the 7 mm bullets same speed or better as the Rem 7mm Mag's do, and burns only 2/3 the powder. I don't think there's a better cartridge for elk-sized game than that one. BTW - the 260 Rem (6.5-.308) superlight-weight rifle is incredible!