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View Full Version : So I bought a few green mountain blanks...


jmorris
03-04-2016, 09:41 PM
After looking for "uppers" for one of my TC contenders for my Daughter and not liking the prices I decided to build them.


Started with the .22 blank and turned it down and threaded it for a suppressor.


http://i664.photobucket.com/albums/vv5/qvideo/gn/Tc/IMG_20160225_160350_926_zpsjbq7xk0g.jpg


While I was at it, I went ahead and machined a thread protector if it ever didn't have one on or a QD adapter on the threads.


http://i664.photobucket.com/albums/vv5/qvideo/gn/Tc/IMG_20160225_160302_240_zps8pucmr59.jpg


After a little searching, I couldn't find any weld on lugs (one source for threaded) and machined my own just averaging the measurements from the TC barrels I do have.


http://i664.photobucket.com/albums/vv5/qvideo/gn/Tc/IMG_20160304_121205_366_zpsgcvbonah.jpg


Welded the first one together yesterday, chamber reamer is on the way now and after that will have to machine the slot for the extractor, finish and test. If it is a "winner", will do the next one the same way.


http://i664.photobucket.com/albums/vv5/qvideo/gn/Tc/IMG_20160304_124329_788-1_zpsub6w2vfg.jpg
Edward
03-04-2016, 10:05 PM
Very impressive ,hope to see more of the build .I am not allowed to play with sharp objects/tools :bigsmyl2:
merlin101
03-04-2016, 11:27 PM
Very nice! Please keep us informed.
RayO
03-05-2016, 10:55 AM
Excellent craftsmanship.
MarkP
03-05-2016, 11:24 AM
Very nice welding!
marlinman93
03-05-2016, 01:05 PM
Nice work! Are you going to knurl the thread protector, so it can be tightened/removed easily?
TCLouis
03-06-2016, 12:11 AM
NICE work!
John Taylor
03-06-2016, 09:55 AM
You might check your bore size after welding. I have found that welding on a barrel causes a tight spot in the bore. Also the heat treat on 4140 steel can be altered and may make problems when chambering. Other than that looks like very good work.
725
03-06-2016, 09:59 AM
Wish I had such skill. Looking forward to future reports.
leadman
03-07-2016, 02:03 AM
Looks like you are doing a great job on machining and welding those. Did you weld across that chamber end of the barrel? I bought 2 Bergara barrels for my Encore and they were not welded on the end and the welds stretched and the barrels no longer locked up tight. Their weld on the sides was not as stout as your though.
Don't know if you are going to use T/C extractors or not. If you do the extractors for the Encores were mysteriously changed in design recently and caused problems with 2 barrels I bought from H&H Sports in Minn. Customer Service? at T/C was unaware of the design change.