I bought a Winchester model 70 Extreme weather in 300 win mag. I'm EXTREMELY dissatisfied with the accuracy. It groups 2 1/2 to 4 inch groups at 100 yards. I've tried several types of ammo: Remington Premiere, Winchester, Barnes Vor-TX, Hornady, Federal Premium and Federal Fusion. I'm shooting off of a lead sled, so I know I'm holding the rifle still. I've checked the base and ring screws. I've tried a Zies Conquest and a Nikon scope, both 4.5-14. Winchester's web site says I can expect 1 inch group at 100 yards, but there service center says the spec calls for 2 inch group at 100 yards. It may take 2 months for Winchester to examine the rifle.