I just finished building a 7WSM and in the process
of seting the headspace found that the back of the
case was touching the outer edge of the bolt recess.
All of the WSM,s and Ultra mag,s have rebated rim cases.
Bolt faces are normally only a few Thousanth larger than
the rim so it stays under the extractor.
The solution for me was to bevel the bolt recess at the
Inside Dia. Just enough To clear the brass body.
NOTE Be sure and check Headspace in case the brass was
holding the head off the bolt face.
If you have any question,s please let me know because this
could be very dangerous"
J E CUSTOM