Thanks in advance for any help. I am currently building my first custom rifle and have a question about chamber protrusion. I am ordering a barrel from Lothar Walther. I have them threading to a Remington 700 action and chambering to 300 win mag. I plan to set headspacing with a finising reamer and go gauge, I would like to know is there a set material .005"-.010" or something that would be a good amount to have them leave on to finish with the reamer? I want to get it close so I don't have to remove a ton of material but want enough left to not have to re-face the barrel. I have access to a full machine shop but little experience with rifle barrels/actions. If anyone could point me in the right direction as to how much protrusion to get me close to finish it with a reamer would be appreciated. Thank you.
Gunsmithing Barrel short chamber protrusion
- Thread starter t_moto_5
- Start date
Barrel: 250-1000 shekels
Reamer: 130-200 shekels
Is potentially oofing 380 to 1200 shekels worth NOT taking it somewhere to have done professionally?
Just a thought. Good luck.
Reamer: 130-200 shekels
Is potentially oofing 380 to 1200 shekels worth NOT taking it somewhere to have done professionally?
Just a thought. Good luck.
Quite possibly, yes. Learning, improving skills. May also save six months or more, depending on how busy your gunsmith is.
Thanks for the responses guys. I agree having a gunsmith do the work is a good idea and I already contacted the only one I know of locally to get his cost and timing. I do agree with mallrat as well, I would like to get more hands on with my weapons and learn and improve skills. I worked in a machine shop to help get me through college so I am by no means new to maching just new to any sort of gunsmithing. From what I have researched it sounds pretty straight forward to finish reaming a barrel just takes a lot of patience and go slow... If I do do it myself I would like some feedback if anyone has a good staring point as far as how much material to leave for the final reaming. Thanks again.
I would leave about .030 for clean up.
Well researching more and I think I confused myself again... so I will call Lothar Walther tomorrow but reading on the belted mags can I order my barrel before receiver as this is the longest lead time of the build? I can't measure my actual receiver but is there a general number for 300win mag and a 700 Remington that will leave me safe as far as what to put for chamber protrusion? Thanks
Just order a preturned and threaded short chambered barrel for your 700. That's all you need to do. 300 WM 1/10 twist or what ever you want. They will leave enough for you to finish.
