OK, I gave up on trying to to use 300 Wins for my new 30-338, and got some new 338 cases to neck down. Problem is, when I run them through the sizer (Redding FL), the necks come out horribly crooked. I tried different lots, and even once fired cases (found at the range)...same result. I thought that maybe my die was bad, but the reformed 300 Wins are straight, and if I fire a crooked round in my rifle, it comes out straight, and then re-sizes straight. I thought necking down was a simple operation. I do not want to have to depend on fire-formed brass. Can anybody help me here?