I have a remington 721 and the damn extractor keeps rolling and locking up my ejector plunger, I sent the bolt to my smith and he put a 700 extractor in it, and that made things worse, a 721 has a lip on the bolt face, and the 700 ejector makes the case hang up on the lip, and the original extractors seem to be non existant. Anyone ever remove the lip off of one of these bolt faces and install a sako extractor??? better yet, who can I get to install one for me thanks, Joe