I bought a Remington 700 in 300 Win. Mag. from my uncle. I've already got a 300 mag that shoots well. I wanted something to take apart, accurize, rebarrel, re-stock, pillar, bed, free float, etc. Basically, it's gonna be a 10+ pound rifle that'll push a 125 grain slug at 3200+ fps and be a tackdriver out to 500+ yards. From looking at different barrel contours and the estimated weights, I could potentially shave 1/2 pound off my ordering a fluted barrel. It's already gonna be a heavy contour and a heavy rifle, so I don't know if that 1/2 pound is worth the extra expense. Does fluting of a barrel provide any additional benefits? I would assume it would act like a heat sink and cool the barrel better. What about rigidity and vibration? Based on weight and cooling alone, I would rather stick with a normal barrel. However, if fluting has any additional benefits, I would reconsider. Don't ask me why I'm doing this, my uncle bagged an elk, a black bear, and a mulie (at 450+ yards) with this thing in it's current form...with 1 shot each.