Chambering a Military Mauser Action, Building a Custom Mauser - Turnbull Custom Guns

In this Video in our continuing series on building a custom Mauser Action, we go over the basics of headspace, and finish reaming a Short-chambered barrel. Then reassemble the barrel to the action. Don't miss this one it has some original artwork by Don! And features Olly our English Sheppard at the end!

[@davidcarter8457]

Good technique. I don’t use a floating holder because I prefer to feel the reamer as it’s cutting. Also have switched from Do-Drill to BoLube. The finished chamber cast is measuring more consistently to the reamer. Usually dead on. Years ago a highly skilled machinist told me that if you can hold the hole to within .001” of the reamer you were doing good. I’ve always been within .0005”. I think the BoLube reduces the tendency to work harden the surface. Threading is improved as well. Thanks for sharing.

[@Turnbullcustomguns]

I'll have to try some of that lube. Thanks for sharing as well.

[@Dwyer88]

Always enjoy the videos! Been watching this series love it

[@Turnbullcustomguns]

Thanks, I need all the views I can get :)

[@mikerobinson6606]

Another good one. Thanks.

[@Turnbullcustomguns]

You bet

[@slowguy66]

Could a standard mouser 98 bolt face be modified to chamber 300 PRC? I can get a barrel.

[@ericschulze5641]

Hey here's one for ya , I'm wondering why they even sell short chambered barrels? If you had a fully chambered barrel & ended up accurizing / truing up the action, you would now need to trim the barrel as you did, creating a short chambered barrel, no ? I suppose if you did the front of the action and front of the bolt lug recess then you wouldn't have to do anything to the barrel just the bolt face, so again, WHY , I'm guessing insurance reasons, diy people now can't chamber a round

[@Kindnessmatters2]

First! ❤

[@Turnbullcustomguns]

Good Job

[@vettepicking]

You didnt indicate the barrels bore? You used a 60deg shopmade center and indicated off a chamfer angle on the end of the chamber? Thats bad practice

[@Turnbullcustomguns]

Thanks for watching, unfortunately not everything makes it into the video or gets recorded since I'm a bit of a one man show with the production of these video's. When the chamber was shortened the original chamfer was removed and the barrel was reindicated to the chamber not the chamfer. Since my customer already ordered a short-chambered barrel it was not reasonably possible to indicate the chamber end to the bore. The floating reamer head will have to do it's job and allow the reamer to properly follow the bore for the remain .065 that was left to chamber. As to the shop-made Center, just because something is "shop made""it doesn't mean it can't hold tolerance or be quality built. This one was actually made at college 20+ years ago and has served me well ever since. Thanks for watching!