I recently purchased a Whidden click adjustment full length bushing sizer die in 223. The issue I'm having is that when I size my brass, the bottom part of the shoulder bumps to proper size using a bump shoulder gauge, but the majority of the shoulder, especially near the neck bulges out away from the centerline of the case. Instead of a nice straight angle on the shoulder, you get a small straight edge close to the case body but the upper half balloons out. I have adjusted how much case lube is used to see if that was causing issues. No change. The only thing that I can see causing the problem is that the clearance hole in the die that allows the case neck to slid into the neck bushing is too large. When looking up into the die from the bottom side, there is a very small area that bumps the shoulder. Is it possible that the clearance hole for the neck was drilled to large and therefore there isnt enough material to actually keep the shoulder from bulging out? Haven't tried calling Whidden as I've received some great advice on here.
Any advice would be greatly appreciated.
Any advice would be greatly appreciated.
























































