I don't think I'll be able to load anywhere near the lands on my 338 Fed Montana. Mag box limits me to 2.82 and my early measurements show 2.84 to 3+ required to get to the lands depending on the bullet.

DJTex, I've read about Montanas being more difficult to shoot from the bench due to the lightweight. I'm taking mine out for the first time tomorrow. Have you found you need to apply any particular technique to maintain accuracy? When shooting off a bench, I shoot my other somewhat lighter rifles off a bipod with a fair amount pressure into my shoulder with my right hand, and the left hand around a small bag under the rear of the stock. Has worked fine. Obviously whatever you are doing works.