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Originally Posted by
BVZ24
I'll update if you want.
We do...
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The Following 2 Members Say Thank You to browningautorifle For This Useful Post:
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08-12-2022 12:35 PM
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Legacy Member
Verdict, after 2 trips and a reamer, no work performed.
The gunsmith checked headspace, in my opinion, very late, and decided that cutting the chamber would make too large.
He thinks that the shoulder is off and wants to cut the barrel back and cut a new chamber. Nope.
I still fail to understand why a touch with the reamer wouldn't fix the shoulder enough to chamber.
I'm like 0/4 on surplus rifles this year.
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Contributing Member
Originally Posted by
BVZ24
Verdict, after 2 trips and a reamer, no work performed.
The gunsmith checked headspace, in my opinion, very late, and decided that cutting the chamber would make too large.
He thinks that the shoulder is off and wants to cut the barrel back and cut a new chamber. Nope.
I still fail to understand why a touch with the reamer wouldn't fix the shoulder enough to chamber.
I'm like 0/4 on surplus rifles this year.
It's kind of weird. We have an expert Arisaka gunsmith and an expert Lee Enfield gunsmith hanging around these threads (I've used both and they are excellent) but I haven't seen or heard of an expert Mosin gunsmith. Anyone know of any?
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Contributing Member
Originally Posted by
BVZ24
Verdict, after 2 trips and a reamer, no work performed.
The gunsmith checked headspace.
What was the results of the headspace gauges? This would guide you to the proper solution
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Legacy Member
He didn't go into the exact details, but it closed on the go gauge and didn't close when he dropped in a few thousandths shims until it didn't close.
The reamer that he got would cut the rim as well, so it would increase headspace.
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Am I missing something here? closing on the go gauge is a good thing. Adding a few thousand shims would make it a no-go gauge wouldn't it? Which is good that it did not close on the no-go gauge. If it closes on the go gauge then I'm not understanding why it's not closing with a mil-spec round. They are supposed to be the same. Surely someone here works on a lot of Mosins that could help in this situation?
Last edited by jond41403; 08-20-2022 at 10:20 PM.
"good night Chesty, Wherever You Are"
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Legacy Member
I think it's a combination of any number of these factors.
1. Really good headspace. Mosins just aren't supposed to be that tight.
2. Thicker modern commercial ammo cases. They are too big in the chamber. I actually should have found old surplus ammo to try before I sent it to the gunsmith.
3. A slightly off shoulder angle.
If most people find a Mosin that doesn't work, they just get a different mosin.
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Thank You to BVZ24 For This Useful Post:
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Legacy Member
Yeah, plus I forgot Mosins headspace off the rim not the shoulder.
"good night Chesty, Wherever You Are"
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Legacy Member
Interesting "gunsmith"..
In general, rimmed rounds headspace on the RIM, not on the csae shoulder.
If a factory fresh cartridge will not drop fully into the chamber, there IS an obstruction.
Separated cases are pretty rare with Mil Surplus in ANY reasonable firearm., Reloads? Not so much.. IF a many-times reloaded BRASS case has separated and left the front half behind, there are special tools to remove such obstructions and they re relatively cheap and abundant. Given the dimensions of the standard Russian case, One of the "MIL" -type case extractors, correctly used, will do the trick.
The "US" type, .30 cal / 7.62 NATO case extractors that have a thread in the front "cone" are the go. The CORRECT way to use these is to screw a bunch of rod sections to the extractor and GENTLY insert it from the REAR. There needs to be a couple of inches of rod protruding from the muzzle. The whole shebang MUST be inserted far enough that the external "collet" clips over the front end of the case neck. A GENTLE tap with a SOFT mallet or block of wood is usually sufficient to drive out the offending object.. Probably more than a few Videos floating about. Hopefully at least one will show the correct equipment. and method.
If, after all that, you still cannot fully chamber a round, find an actual gunsmith with Mil-Surp experience and especially, with "furrin" firearms.
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Legacy Member
I agree with the article Jim referenced. I had the same problem with my 1894 Spanish Mauser model 1893. IT WAS DIRT AND GRIM plane and simple. Packed in over a period of 100 years or more! I couldnt see it. The bullet appeared to seat properly.
As long as the barrel isnt short chambered (unlikey) you just need to get a dental pick and chamber brush in there with some solvent (maybe) and clean it until you see only shinny metal...no dirt anywhere!
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