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Toz36/49 Rebarrel
Posted: Sat Oct 23, 2010 1:47 am
by JamesH
Has anyone rebarrelled a Toz 36 or Toz 49?
I found my barrel is severely pitted, not really sure how it happened as I clean and oil regularly and its never happened to any firearm I've had before.
I'm particularly interested in the thread TPI and form, as I may buy a lathe for the purpose, or may have to get a machine shop to do it by CNC if its some obscure dimension.
Also the various other dimensions, steps etc would be handy.
Otherwise I need a new Toz 49....
TOZ 36/49
Posted: Sat Oct 23, 2010 2:55 am
by David M
Contact Alex Taransky in South Australia for Toz information and current gunsmiths.
Posted: Sat Oct 23, 2010 5:11 am
by JamesH
Thanks, I did buy it originally from Alex, I will see if he has another or even a spare barrel.
I know Campbell M does work on them, I was hoping to have a go at it myself but if no-one has any info I will try to pick his brains.
Posted: Sat Oct 23, 2010 5:18 am
by Spencer
would it not be easier to re-sleeve the barrel?
Posted: Sat Oct 23, 2010 5:55 am
by JamesH
Very probably, maybe I'll go down that route, but I'm looking for an excuse to buy a mill and a lathe and I think there's more choice in barrel blanks than liners.
I also wanted to build an adjustable foresight into it so might as well start from scratch.
The barrel does shoot OK, but doesn't inspire confidence, maybe I'll try lapping out the worst of it.
Also, I'm not seeing any gunsmiths in the pipeline and the ones we have here aren't getting any younger. Building barrels is a skill I could use.
Posted: Sat Oct 23, 2010 7:15 am
by Rover
You suggest lapping it. "Fire-lapping" might be even easier and could improve the barrels accuracy.
Just embed some 400 to 600 grit valve grinding compound into the bullet by rolling it between two metal plates. Wipe off the exess and shoot.
You only want to use enough powder to get the bullet out of the bore.
If you're considering a rebarrel, what could it hurt?
Posted: Sat Oct 23, 2010 7:07 pm
by j-team
I can't remember the diameter but the thread pitch is 1mm
It's about 20 years since I had the barrel off my Toz49!
I converted it to .32SWL, just stepped the barrel back 2 full turns and shortened and sleeved the cylinder.
Posted: Sat Oct 23, 2010 10:28 pm
by JamesH
If the thread pitch is 1mm, which being Russian it probably is, then its easy.
I have fire-lapped a Model 16 before. The corrosion is 99% in the grooves and not the lands so I was hoping to just cut the grooves out a little deeper which should be straightforward-ish.
Thanks for all the suggestions, should anyone hear of a bare barrel I could measure, or a 2nd hand Toz 49 for sale I'd be glad to hear about it.
How hard was it to remove the barrel?
Posted: Sun Oct 24, 2010 1:50 am
by j-team
JamesH wrote:
How hard was it to remove the barrel?
Easy, just unscrews. No pins or anything like that. Just be careful (as with all revolvers) not to twist the frame. Make a couple of close fitting wooden blocks that support the frame close to where the barrel screws in and contact it as much of it as possible to spread the torque evenly.
Original Russian is 7.62 not .32. But, it's so close it doesn't really matter especially as we use soft lead HBWCs. I have heard of people using a bit of an old .303 barrel, not sure about the twist though, you would need to check it out first.
For what it's worth, I bought my Toz 49 from Skelton in Brisbane in 1991 when I was there shooting the PA Nationals. I took it back to NZL and converted it to .32 SWL straight away. I sold it about 5 years after that, then bough it back again some years later and then sold it again! Someone in Wellington has it now I think. It was Alex Taransky and Paul McCormack that encouraged me to convert it.