Problems with chambering

Boltcarrier

Boltcarrier

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It started when I encountered my first case separation and after using the cerrosafe to remove the stuck case in the chamber.


now I am faced with a new problem and that is when I tried to put the cartridge in, it won't chamber.

the cartridge goes in someways but not all the way. Before the case separation, there was no problems chambering the gun


please advise if you have any suggestions on fixing this problem

thank you
 
Obviously the chamber is altered in someway... since you can not determine why it won't chamber a round, take it to a gunsmith and have him determine why it won't chamber a round.
 
Didn't turn up the volume. Maybe you mentioned it...
Dummy rounds made with sized fired cases or with new factory? If fired casings were used, the problem might be right there.
Either there is something wrong with the chamber or something wrong with the cartridges.
Have you tried live rounds (obviously in a place where it would be safe to do so)?
When the bullets were crimped into the cases, were the shoulders or necks bulged?
You are a lot closer to the rifle than anyone here, and have the rifle at hand. If you cannot see an obvious cause, then a trip to a decent gunsmith is in order.
 
Assuming that you have got that chamber throughly cleaned and nothing left stuck in there, chances are good that you will need a gunsmith to fix the problem. Chambers here, on rifles that function well, are shiny smooth like a mirror - no dings or scratches inside. However, I have been able to identify such a chambering problem by colouring a case completely with black jiffy marker, let dry, then try to chamber. Will leave scratch or rub marks on the case where ever it is hanging up. Gives you an opportunity to see what is going on. Your previous post about this issue mentioned gouging something in the chamber before you tried the cerrosafe - might be where your problem is. Not certain that you can "fix" it or not, but you will know where the problem is. In my case, I was trying to form a cartridge case from another cartridge - the jiffy marker showed me where I had not sized it down enough.
If there is any evidence of a scratch or gouge in the chamber wall, or any deposit, that creates a place for the brass to swell into or around when fired - creating a mechanical lock, so difficult to get it out after firing, if you are able to chamber a cartridge, at all.
 
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The rifle is 75 odd years old. It has probably been fired a number of times.
If it has stopped being functional, something has happened to it. Or the ammunition is the problem.
One or the other.
 
You probably nicked the chamber when you tried to drill out the split case in the last thread.

If you had access to a finish reamer you could clean it up by hand. And with an extension you could leave the barrel on the receiver and go in from the back.
 
"finish reamer" - "clean it up by hand" - quite doable, but need to start with a very light touch - unbelievable how little effort it takes to deepen a chamber a thou or two with only a turn on a sharp reamer. Up to you, but if you raised a section by gouging into the wall, a reamer might skim off that raised section, but will still have that gouge, unless you continue until all cleaned up, and which point the barrel likely needs to be set back and re-head spaced / extractor groove, etc.
 
It looks like a gouge and a curled chip in the chamber. Even if you remove the chip, the gouge might still make it difficult to extract a fired brass case. I have a Mosin barrel where someone rammed a steel rod in the chamber and produced a gouge. Steel cases would extract fine, but brass was difficult.
I ended up changing the barrel or like Potashminer said, setback and rechamber.
 
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Often you can wrap the case in one wrap of masking/painters tape if the chamber is bad or had pits/low points and it extracts just fine if its not too deep.

Other option is lower pressure. 3030 load data or cast bullets
 
Methinks you have a issue with the chamber caused by leaking Cerrosafe, or the divot you created in the chamber wall. Methinks also, that you should have someone who is qualified have a look, before you attempt a fix and do more damage to the gun or yourself.
 
Evanguy said:
You probably nicked the chamber when you tried to drill out the split case in the last thread.

If you had access to a finish reamer you could clean it up by hand. And with an extension you could leave the barrel on the receiver and go in from the back.
Click to expand...

Some people shouldn't be allowed to play with tools. :(

Grizz
 
I suspect a resizing issue. Try a new factory round. The shoulder on your dummy round does not look quite right. Nothing wrong with your computer skills, an excellent job of posting.
 
I'm sure I remember him mentioning hammering and chiseling the chamber walls and making dents and smears in the previous thread. They might just be causing the trouble. The right rat tail file and a counter clockwise twist easily removes seperated cases in semi skilled hands.
 
billdick said:
I'm sure I remember him mentioning hammering and chiseling the chamber walls and making dents and smears in the previous thread. They might just be causing the trouble. The right rat tail file and a counter clockwise twist easily removes seperated cases in semi skilled hands.
Click to expand...
I just looked up the other thread. CHISEL DAMAGE to the chamber. Depending how bad there is a possibility of removing it with sand paper , cleaning jag and a drill. Slotted jag on a section of rod. I cleaned up a 43 Mauser chamber that I wasn’t sure I could save so wasn’t too worried about ruining it. Use a little bit of oil. Don’t get too aggressive, try the case for fit often. Better to go slow than take to much out. Keep the drill spinning, push in and out, slow to medium speed.
 
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