Feeding Problems

[tweek1142]

I have been reloading for eight years now and have not ran into a problem like this before. I have a 300WSM and when i resize the brass i do so by bumping the shoulder back .002. I just tried to load up a shell and the shell was too wide to push down into the magazine. its too wide to get past the race ways.I have a hinged floor plate magazine. What could cause this?

Thanks