- Joined
- Mar 2, 2016
- Messages
- 52
I replaced the barrel on my B50 .22 with a un choked 15mm x 600mm blank from gmac in the UK.
The stock barrel was 18”x22”x1/2”
I had to machine to fit the breech and drill for a transfer port
I cut the lead with a 7/32 bit using hand power in the lathe and cleaned it up with a rubber sanding point that I sized using sand paper.
I had to make a new barrel band, I used 6061 2”x3/8 bar and after laying it out I drilled and finished both holes with a boring bar in a 4 jaw chuck.
I glued the barrel to the breech with blue loctite, I was so excited I never thought about blueing the barrel first.
I quickly set a scope up and took some shots and its definitely an improvement over the old barrel.
I decided to cut the barrel to 19” and thread it to 1/2x20 to match some existing odds and ends I have. I used a die and pressed it into the work with the drill chuck in my tail stock. I did a practice run before I cut the barrel and it went very well.
I made a thread protector from the cut off, this is the first time I used a knurler.
Tomorrow I will cold blue the barrel and maybe paint the barrel band.
Work was done on my Grizzly 0768
The stock barrel was 18”x22”x1/2”
I had to machine to fit the breech and drill for a transfer port
I cut the lead with a 7/32 bit using hand power in the lathe and cleaned it up with a rubber sanding point that I sized using sand paper.
I had to make a new barrel band, I used 6061 2”x3/8 bar and after laying it out I drilled and finished both holes with a boring bar in a 4 jaw chuck.
I glued the barrel to the breech with blue loctite, I was so excited I never thought about blueing the barrel first.
I quickly set a scope up and took some shots and its definitely an improvement over the old barrel.
I decided to cut the barrel to 19” and thread it to 1/2x20 to match some existing odds and ends I have. I used a die and pressed it into the work with the drill chuck in my tail stock. I did a practice run before I cut the barrel and it went very well.
I made a thread protector from the cut off, this is the first time I used a knurler.
Tomorrow I will cold blue the barrel and maybe paint the barrel band.
Work was done on my Grizzly 0768
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