I have made several rimless wall extractors, with mixed success. One problem is the weak side-loaded extractor spring and another problem is lack of primary extraction camming. Worked OK for 30-06 but got stuck brass with both 223 Rem and 243 Win. Sometimes worked fine, other times they stuck, all with the same loads. Nowadays I stick with rimmed cases.
Regards, Joe


You can lead a man to logic but you can't make him think. NRA Life since 1976. God bless America!