Jammed TT33 slide, could use some help.

VuDu666

VuDu666

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Hello everyone!
I have this strange issue with my TT. While it would go through one box of soviet milsurp without a single issue, it will randomly jam after firing a round with same date but from another box. I tried soviet ammo from 50s, ammo marked BXN also from 50s and modern S&B. Didn't have issues with S&B and one box of soviet stuff but second box as well as BXN ammo started causing jams. Bullet comes out just fine, hits where I aim but slide would go back about 3/8 of an inch before becoming completely jammed while spent brass freely moves in the chamber. The only way to get slide to return to battery is to hit muzzle with hard object. After that slide goes forward and pistol starts working like it supposed to. Spent brass is not damaged and there is no damage to internals. Any ideas to why this could be happening? Just old ammo? I know BXN ammo is spicy, that's why I didn't fire many rounds but second soviet box was just regular pistol ammo and still kept jamming.
 
Field strip the pistol examin the out side of the barrel and inside of the slide for damage or burrs. Give it a good cleaning and check the chamber for damage.
 
gaff said:
Field strip the pistol examin the out side of the barrel and inside of the slide for damage or burrs. Give it a good cleaning and check the chamber for damage.
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Already did that after first jam. No damage, no scratches. I checked barrel, inside the slide, frame, hammer assembly. Basically every part I could check during field strip. Didn't find anything out of ordinary. Pistol was cleaned before firing but I oiled frame and moving parts at the range again, just in case. That's why I'm confused. Have no idea how it's actually jamming because everything seems to be in order. At first I was thinking recoil spring was catching on something but after multiple jams and making sure that spring is sitting properly I bought 50 rounds of S&B at the range just to try different ammo, fired all of it without single issue.
P.S Soviet ammo in both boxes looked identical and not dirty/tarnished/damaged just a bit darkish like all east block milsurp I fire from rifles.
 
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That milsurp ammo I find is very hot. Chronied it once at over 1500 ft/sec! Strip it right down and grease the rails with a quality lube like G96 or ballistol etc. These are robust pistols and made for that commie spec ammo.
 
Attilathecanuk said:
That milsurp ammo I find is very hot. Chronied it once at over 1500 ft/sec! Strip it right down and grease the rails with a quality lube like G96 or ballistol etc. These are robust pistols and made for that commie spec ammo.
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Yea, BXN ammo was hot. Probably SMG ammo. I felt the difference in recoil and saw different muzzle flash but modern ammo was pretty much the same when it comes to recoil and flash as that first "problem free" box of soviet stuff, both soviet boxes were actually marked as "pistol ammo". I shot same ammo through TT back in the old country. Never had this gremlin.
 
I find that the tokarev's are slightly picky with what ammo they are fed! I find the military surplus ammo to be the best, never had a failure to extract/ jam with surplus ammo, on the other hand new production norinco and sellier and bellot do not extract all the time causing jams! My guess is that its an ammo issue, maybe the quality controll wasn't the best for that batch of ammo you shot. Tokarev's like hot ammo
 
VuDu666 said:
Yea, BXN ammo was hot. Probably SMG ammo. I felt the difference in recoil and saw different muzzle flash but modern ammo was pretty much the same when it comes to recoil and flash as that first "problem free" box of soviet stuff, both soviet boxes were actually marked as "pistol ammo". I shot same ammo through TT back in the old country. Never had this gremlin.
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I shot one round of bxn out of my C96,1710 fps,ouch-never again.Pulled a few rounds apart to check the powder charge.10 gr.much too hot for a pistol round.
 
Is the slide not going back all the way, or do you think it could be going all the way back and then not coming forward enough? This can happen fast when shooting and you might not notice the difference.

If you manually cycle it with an empty in the chamber, is the extractor grabbing and extracting the spent case?

Is the next round in the mag trying to chamber and jamming on the spent round?
 
I watched another person shoot, slide is definitely getting stuck on it's way to the rear, not on the way back. Manual extraction works just fine. I tried it about 20 times. Not a single issue. Also tried manually extraction brass from a round which caused jam. No problems there. Worked every time. I also tried loading just one round and still had issues. After muzzle gets good whack slide goes to battery no problem and spent brass can be manually extracted just like nothing ever happened. Like I said before, brass doesn't have any damages or unusual marks on it. I know, weird thing to experience, eh?
 
VuDu666 said:
I watched another person shoot, slide is definitely getting stuck on it's way to the rear, not on the way back. Manual extraction works just fine. I tried it about 20 times. Not a single issue. Also tried manually extraction brass from a round which caused jam. No problems there. Worked every time. I also tried loading just one round and still had issues. After muzzle gets good whack slide goes to battery no problem and spent brass can be manually extracted just like nothing ever happened. Like I said before, brass doesn't have any damages or unusual marks on it. I know, weird thing to experience, eh?
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the slide might be getting stuck on the hammer assembly. ive had one where the hammer assembly was improperly fitted so it was sitting a little too high causing excess friction when the slide would ride it.
 
Something snagging it, maybe the mag, put the mag in, chamber a round and take the mag out again, then shoot it and see if it still hangs up, if not then it's the mag, if it does still hang up then you have eliminated that source!
 
Do you have another TT where you can swap parts one at a time to see when the problem goes away? For example:

- hammer assembly
- slide
- barrel
- magazines

If you narrow it down, that will help.
 
I would start with the magazine, it is an easy part to work with and I think the most likely problem source.

Early single column magazine were number to the pistol for a reason.
 
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Mumbles Marble Mouth said:
They’re a ####ty gun. Sell it and you can do way better with a S&W SD9VE. Trigger is about as heavy but magazines and parts are widely available.
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Oh god no, I own a TT-33 and have shot the sd9ve. It was garbage, the trigger on my TT was better than the S&W. Way better, way way better hahaha. I wouldn’t take a sd9ve if I was offered to me for free...
 
How old are the springs? Original perhaps. I picked up a Polish TT33 and found that I would get light strikes, second hit would fire. Picked up a set, well 2, from Wolff for the TT33 (minimum order so I just ordered 2 sets). As all the springs were original and 60 years old I replaced them. No more issues except with old ammo needing a tap on the slide to close into battery. Perhaps your return (recoil) spring is weak and it cycles too quick with hotter ammo causing a rearward lockup or stall? I think there are Canadian suppliers now that there may be duties in place.

Note if you can remove and reinstall the hammer spring without some effort, your springs are old. The hammer spring was a biotch to get in and there was a noticeable difference in the lengths of the various springs, old versus new.
 
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