Gripper wrote:
Mastiff,I like the TT33's myself ( and VZ52's,Mausers,etc);but how DID you ework the (mm Tok to safely handle the 9X23...I know its basically a rimless.38Super/upgraded 9mmLargo;but that must have been some serious attention to detail!!!
It took a drill bit set.
I followed Clark's instructions. He posts on this site, and was very helpful to me on this conversion.
Here is a repeat of his post.
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http://gunsnet.net/forums/showthread.php?t=244727 (post#7)
The 9x23mm chamber can be had in a Chinese 9mm Tokarev barrel with a drill set.
I have 1/2" drill chuck that I hold in one hand, the 9mm barrel in the other, give it a few quick twists of the wrist, and the cutting is done. Be careful not to cut too much. Use a cartridge for a chamber gauge.
The 38 Super, 9mm Largo, and 9x23mmWin are similar and can each be achieved with a drill set. The Tokarev makes a much better conversion than a Star Super B, but both will work.
base: Largo .375", 38 super: .384", 9x23: .390"
case: Largo: .91", 38 Super: .9", 9x23mm: .9"
neck: Largo: .375", 38 Super: .384", 9x23mm: .380"
OAL: Largo: 1.32", 38 Super: 1.28", 9x23mm: 1.245"
http://www.widell.com/drillsiz.html
As you can see, V drill will make a .3770" hole and a W drill will make a .3860" hole.
The correct choice for lengthening the chamber is 24/64ths. This make the chamber .0060" sloppy, but that is fine.
The throat should be .357"
As you can see the T drill makes a .358" hole. that is .001" oversize
23/64 drill will make a .3594" hole, that is .0027" oversize.
U drill will make a .3680" hole, that is .011" oversize.
I find that I like the U drill better for getting the cartridge to fall in the chamber, but drill holes made with a twist of the wrist may be a few thousands small.
I seat a .358" LSWC bullet out to 1.36" and cut the throat until the cartridge falls in.
The max load for 357 mag with 158 gr. is 8 gr. Power Pistol 1.57" OAL.
http://recipes.alliantpowder.com/rg...descr=158 JSP
I load:
.380 in M1903: 8.5 gr. Power Pistol 158 gr. XTP, 1187 fps
9mm in P11: 11 gr. Power Pistol, 158 gr. XTP
9x23mm in Tokarev, 16 gr. Power Pistol, 158 gr. XTP, Win brass
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http://www.bettico.com/Tokerev2.pdf
This is a copy of a magazine article where the guy talks about converting the Norinco Model 213 (a Chinese copy of the TT-33 in 9mm Luger) to 9x25 Mauser Export. He doesn't use the drill bit set, however!