I have a 200 Stevens that wears a "take off" .300 wm bbl that I purchased here for an anticipated Elk hunt this fall. The problem is, with two or three different Federal factory loads and weights, it won't shoot through a 5 gallon bucket at 200 yds!!! It's hard to imagine a rifled bbl shooting so poorly. Scope is a Bushnell Elite 3200 5-15, mounts and rings are tight, the scope works fine on other rifles. Head space is good, though these federal cartridges are not consistent in "feel" when you close the bolt, some are very tight, others from the same box are very loose, all factory ammo. Still, 2' groups at 200yds? Is this just a bad bbl???