This A.M. I discovered that my 7mag Sendero's extractor is broke. It broke right before the lip that catches the casehead. The part with the rivet is still in the boltface. I looked on Brownell's website and think that I need the "extractor, rivet type, belted magnum, pg 412, p/n 767-157-090".
Do any of the resident gunsmiths know for sure? If so, is it just a matter of using the correct size punch to "de-install" the broke one and install the new one and brad it? Help! Any advise/help would be appreciated. Johnny K.
You must take care when replacing the extractor. The small rivet has a beveled head on the inside and the outside has been "upset" or "peened" into a small countersine on the outside of the bolt snout. You can't just start hammering on a punch on the outside of the rivet. The rivet body is quite a bit smaller than what you see on the outside. A little bit of help from a skilled gunsmith or machininst might be valuable on the first rivet that you remove.
An anvil is needed to support the rivet head, inside the bolt snout, when you swadge the new rivet into the countersink on the outside. I made one but they are available from Brownells.
Yes, I have several 700/722 with Sako extractors, yes I've installed them for a few friends. But I worry about them. NEVER let a lefthanded person shoot one of your Rem's with a Sako extractor. A blown extractor would hit that person in the face and probably cause serious damage.
I'll use a Sako only to save a bolt that has been damaged. Ya, I'm getting more careful as I get older.