I've become fond of the Blaser R93 in .308win with a 16" barrel. It shoots sub MOA and it's proven itself as perfectly capable for big game in normal hunting situations. What I'm thinking of doing now is getting a custom barrel sticking with the 16" length and the obvious choice seems to be to stick with the .308win and a 1:7 twist carbon barrel from Hardy in NZ. These rifles with their switch barrel and switch scope capability are so very versatile. I have a Blaser .338 win set up with a muzzle brake, Kahles k624i, bipod and zeroed with 300 grain Bergers. That same rifle also has a Zeis z6 1.5-10 scope, which is zeroed with 250grain partitions, no muzzle brake, no bipod and becomes a great forest still hunting rifle... I don't expect it to have serious long range capabilities but I would like to hope to be able to reach the 600-800 mark and still be effective. I'm thinking that with a high BC monolithic bullet I should be able to do that. The other thought I have is for the .338 Federal with a bigger bore that might get better velocities for same weight bullets but I'm not sure if I want to go to a round that is basically commercially unavailable. So should I go .308 win and hope to get a 175 grain mono bullet to shoot well? Or go to a higher weight? MV drops significantly with a 16" barrel so it becomes a real factor, by running some numbers it seems like that by using a 16" barrel you are adding about 250 yards to your distances compared to a 24-26" barrels rifle.