Took my Mosin out today. Bore is in amazing condition, and I can group really well with it. It'd be PERFECT, if not for the fact that the entire bolt completely seizes up after every shot. I don't know if the expanded case of the fired round is catching on a burr in the chamber or what, but you literally have to take a rubber mallet to the bolt to get it to open.
I've got a 20GA wire brush you're supposedly supposed to run through the chamber on a drill, but I'm always weary about that shit. Knowing me, I'd ruin the gun somehow.
Google "sticky bolt syndrome", it's a problem with msoins
[QUOTE=Whibble;51037568]Took my Mosin out today. Bore is in amazing condition, and I can group really well with it. It'd be PERFECT, if not for the fact that the entire bolt completely seizes up after every shot. I don't know if the expanded case of the fired round is catching on a burr in the chamber or what, but you literally have to take a rubber mallet to the bolt to get it to open.
I've got a 20GA wire brush you're supposedly supposed to run through the chamber on a drill, but I'm always weary about that shit. Knowing me, I'd ruin the gun somehow.[/QUOTE]
[IMG]http://new1.fjcdn.com/thumbnails/comments/4988248+_fef93d5849834b05eeb0e79af2553c9a.gif[/IMG]
[QUOTE=Whibble;51037568]Took my Mosin out today. Bore is in amazing condition, and I can group really well with it. It'd be PERFECT, if not for the fact that the entire bolt completely seizes up after every shot. I don't know if the expanded case of the fired round is catching on a burr in the chamber or what, but you literally have to take a rubber mallet to the bolt to get it to open.
I've got a 20GA wire brush you're supposedly supposed to run through the chamber on a drill, but I'm always weary about that shit. Knowing me, I'd ruin the gun somehow.[/QUOTE]
As Grenadiac and evilweazel alluded to, your gun has cosmoline in the bolt surfaces, even if you can't see it. It heats up when you shoot, and then a thin film is enough to seize up the gun.
Take the bolt out, disassemble it, and drop it in a bowl of boiling water. Stir it around for a few minutes and you should see a greasy film form on the surface. Drain the water, put the parts on a towel to dry, never use that bowl for food again unless you want cancer. I have a plastic bucket marked 'cancer' for this and other purposes. This will likely solve the problem, but if not, scrub all the parts with mineral spirits, and then scrub the breech with mineral spirits as well, keeping it off the wood.
If the stock has cosmoline on it too (did it 'sweat' when it started warming up?), put it in a black trash bag and leave it in the sun. It'll bake like an oven and sweat out cosmoline, then you can wipe it down with a rag and either repeat the process or call it done. [i]Do not[/i] put the rifle in your oven to sweat out the cosmoline. Yes, it will work, but your oven will be permanently contaminated with cosmoline, which save for being radioactively inert is a dead ringer for green toxic waste you find in comic books, only it will give you cancer instead of superpowers. Some dumb motherfucker on another forum talked about baking brownies on the rack above the rifle to mask the smell, he's probably dead now.
Cosmoline isn't that hard to deal with, there just seem to be a lot of morons that don't make any effort to clean out their rifle and then blame it when it doesn't work right.
Now, if all of that fails, you might actually have a burr in the chamber. In which case take the bolt out, chuck up the wire brush in a drill, and run it through the chamber for about thirty seconds. The chances of damaging the steel chamber with a brass wire brush are nil. But I'd bet money on it being cosmoline, so try boiling the parts first and see what happens.
[QUOTE=evilweazel;51037651][IMG]http://new1.fjcdn.com/thumbnails/comments/4988248+_fef93d5849834b05eeb0e79af2553c9a.gif[/IMG][/QUOTE]
That's equally hilarious and painful to watch. People are so cruel to their Moist Nuggets :(
It's not always Cosmoline though, as catbarf said. Often there's a burr in the chamber, which is a fair bit harder to deal with than cosmoline on the bolt. Fortunately you can use Flitz or some other kind of similar metal polish as well as a brass wire brush to fix it, though a brass wire brush is really all you need, the Flitz is just an extra measure to ensure the chamber is as smooth as possible. I had the same issue with my M91/30, though not quite to the point where I needed to use a rubber mallet, I'd just have to slap the bolt every other round until I cleaned out the chamber and I haven't had much issue since then. Interestingly enough I haven't had an issue with my Chinese Type 53 (basically a Chinese M44), despite the thing looking like absolute hell externally (beautiful bore, though), it's been the smoothest Nugget I've ever fired.
Anyway, on an unrelated note, I recently built a budget AR-15 pistol with a 10" barrel, Anderson Manufacturing Lower, with an SB-15 arm brace, Bushmaster bolt group and an A2 railed upper of unknown manufacturing (the only marking on it is a stylized "A H" on the right side. I bought all the parts at a gun show and didn't think to ask what the manufacture of the upper receiver was at the time, bit of a brain fart on my part). It was meant to be a budget build, costing only around $600, so I wasn't expecting it to be incredibly reliable right off the bat, but I keep having random feeding issues with certain ammunition, particularly "PMC Bronze .223 Remington". I haven't had any issues with feeding Tulammo steel cased 5.56 so I'm not sure if it's just picky with the ammunition it uses or if there's something wrong with the feed ramps. It seems every other round of PMC .223 doesn't want to feed correctly, jamming the round into the uppermost part of the chamber, causing the bullet to be pushed back into the case. Any ideas as to why this is happening?
You know the context of that gif isn't actually cosmoline, right? They'd loaded a shell with random mixtures of powder and it seized the action so bad they eventually broke the bolt trying to open it.
[QUOTE=DaCommie1;51039955]You know the context of that gif isn't actually cosmoline, right? They'd loaded a shell with random mixtures of powder and it seized the action so bad they eventually broke the bolt trying to open it.[/QUOTE]
Yeah I didn't know the context of the gif. It just looked like they were having problems with the bolt sticking and decided to hammer the shit out of it, lol.
[QUOTE=mugofdoom;51039985]Yeah I didn't know the context of the gif. It just looked like they were having problems with the bolt sticking and decided to hammer the shit out of it, lol.[/QUOTE]
[media]https://youtu.be/gfiXFyIbOZw?t=13m36s[/media]
13:36.
[QUOTE=PrusseLusken;51040220]what exactly are brass bristles going to do against burrs in hardened steel[/QUOTE]
I don't quite understand myself, but it worked like a charm when my repro 1887 kept getting fired shells stuck in the chamber, and I know it's commonly done for post-2007 Remington 870s as well. I suspect it might be that despite the softness of the brass compared to steel, it's still able to produce the minute amount of polishing necessary to knock out the burr.
[QUOTE=PrusseLusken;51040220]what exactly are brass bristles going to do against burrs in hardened steel[/QUOTE]
Not sure, but it seems to knock out burrs just fine. I assume the burrs are rather soft, so it's not hard to knock them down. That said any kind of metal polisher seems to add just enough abrasion to knock down small burrs which cause the bolt to stick, as well as polishing the surfaces which the locking lugs ride on, allowing for smoother operation.
At least that's what I did to my Mosin and it seemed to work wonders.
EDIT: I just had a thought. Maybe some of the issues people are having is just carbon build up in the chamber/locking lug channels. In which case a brass bore brush and some flitz would remove it in a heartbeat. Either that or some solvent with a bore brush.
[QUOTE=PrusseLusken;51040220]what exactly are brass bristles going to do against burrs in hardened steel[/QUOTE]
When it comes to mosins, I tend not to question these things. It works so thats all that matters.
[QUOTE=Cyke Lon bee;51040461]When it comes to mosins, I tend not to question these things. It works so thats all that matters.[/QUOTE]
Spoken like a true Russian.
[QUOTE=DaCommie1;51040184]-Mosin Vid- 13:36.[/QUOTE]
Gah, I miss Barry. They're all good and knowledgeable, but for some reason I always related to Barry and understood how he explained things a bit better than everyone else.
Whelp, took the AR-15 pistol out to shoot today and didn't really have any problems with it besides two failures to eject out of 35 rounds.
I'm thinking it may be a problem with the extractor, so I may try swapping out the bolt with my other AR-15 and see if that makes a difference. I haven't had any problems with it in all the years I've had it, though it's a full-sized, 20" barrel retro Colt 604 replica, so that might make the difference.
I can't hit the broad side of a barn from inside the barn with this thing due to the shitty, cheap-ass sights I have on it at the moment and the ridiculously short barrel, but holy shit is it fun to shoot, lol. The muzzle blast is ridiculous even with a flash hider/compensator.
Here's a shitty phone picture of it if anyone's interested:
[img]http://i.imgur.com/d6EBKjn.jpg[/img]
[QUOTE=mugofdoom;51041448]Whelp, took the AR-15 pistol out to shoot today and didn't really have any problems with it besides two failures to eject out of 35 rounds.
I'm thinking it may be a problem with the extractor, so I may try swapping out the bolt with my other AR-15 and see if that makes a difference. I haven't had any problems with it in all the years I've had it, though it's a full-sized, 20" barrel retro Colt 604 replica, so that might make the difference.
I can't hit the broad side of a barn from inside the barn with this thing due to the shitty, cheap-ass sights I have on it at the moment and the ridiculously short barrel, but holy shit is it fun to shoot, lol. The muzzle blast is ridiculous even with a flash hider/compensator.
Here's a shitty phone picture of it if anyone's interested:
[img]http://i.imgur.com/d6EBKjn.jpg[/img][/QUOTE]
Didn't the ATF recently say that sig braces are a no-go after all? I might be wrong.
[QUOTE=Psychokitten;51041625]Didn't the ATF recently say that sig braces are a no-go after all? I might be wrong.[/QUOTE]
They're fine, just don't shoulder them...
[QUOTE=MAC21500;51041650]They're fine, just don't shoulder them...[/QUOTE]
Oh right, yeah. The whole "remanufacturing" deal.
Fucking ATF lol.
[QUOTE=Psychokitten;51041625]Didn't the ATF recently say that sig braces are a no-go after all? I might be wrong.[/QUOTE]
According to the ATF it's an "arm brace". I keep the ATF letter with it so if they want to give me shit about it, I can say I legally bought the thing for its intended purposes.
Either way I can shoulder the buffer tube without the SB-15 arm brace just fine. It's all a bunch of red tape bullshit if you ask me.
I mean, the length of the SB-15 is exactly the same length as the buffer tube on this particular AR-15. If I take it off, there is literally no difference besides the rubber flaps which you put your arm through, and I can't put any kind of actual stock on this thing, seeing as it's a pistol buffer tube with no way to attach a stock at all.
[QUOTE=catbarf;51039480]As Grenadiac and evilweazel alluded to, your gun has cosmoline in the bolt surfaces, even if you can't see it. It heats up when you shoot, and then a thin film is enough to seize up the gun.
Take the bolt out, disassemble it, and drop it in a bowl of boiling water. Stir it around for a few minutes and you should see a greasy film form on the surface. Drain the water, put the parts on a towel to dry, never use that bowl for food again unless you want cancer. I have a plastic bucket marked 'cancer' for this and other purposes. This will likely solve the problem, but if not, scrub all the parts with mineral spirits, and then scrub the breech with mineral spirits as well, keeping it off the wood.
If the stock has cosmoline on it too (did it 'sweat' when it started warming up?), put it in a black trash bag and leave it in the sun. It'll bake like an oven and sweat out cosmoline, then you can wipe it down with a rag and either repeat the process or call it done. [i]Do not[/i] put the rifle in your oven to sweat out the cosmoline. Yes, it will work, but your oven will be permanently contaminated with cosmoline, which save for being radioactively inert is a dead ringer for green toxic waste you find in comic books, only it will give you cancer instead of superpowers. Some dumb motherfucker on another forum talked about baking brownies on the rack above the rifle to mask the smell, he's probably dead now.
Cosmoline isn't that hard to deal with, there just seem to be a lot of morons that don't make any effort to clean out their rifle and then blame it when it doesn't work right.
Now, if all of that fails, you might actually have a burr in the chamber. In which case take the bolt out, chuck up the wire brush in a drill, and run it through the chamber for about thirty seconds. The chances of damaging the steel chamber with a brass wire brush are nil. But I'd bet money on it being cosmoline, so try boiling the parts first and see what happens.[/QUOTE]
You're seriously overplaying the supposed toxicity of cosmoline :rolleyes:
The stuff is basically vaseline but without a fragrance in it.
I'm surprised, looking at the MSDS the only chemical I'm really worried about in Hoppes No9 is kerosene. The banana smell comes from amyl acetate which is safe enough to be used as a food flavouring. The only other thing that vaporises easily is ethanol and the rest have very low vapour pressures.
[QUOTE=PrusseLusken;51043620]i would be more worried about the hoppes no 9 that half of american gun owners seem to collectively sniff at the same time[/QUOTE]
but it's so good
Well I might have a job by next week. If that happens I'll have 2 months of living expenses saved up that I won't need so I'll be buying a toy. Thinking a WASR and an Enfield or a PTR alone.
[QUOTE=PrusseLusken;51043620]i would be more worried about the hoppes no 9 that half of american gun owners seem to collectively sniff at the same time[/QUOTE]
Hey man, don't knock it 'til you try it.
By the way, wanna buy a revolver? :v:
My team lead at work jacked a jar of Frog Lube to sniff when she was bored because she liked it.
[QUOTE=PrusseLusken;51043620]i would be more worried about the hoppes no 9 that half of american gun owners seem to collectively sniff at the same time[/QUOTE]
Meh. A little Kerosene keeps your bones warm in the winter time. I'm much more worried about the silicone lube at work I use by the gallons on my skin over the next twenty years than a few late nights enjoying my sweet Number 9 nectar perfume while cleaning my gats.
[QUOTE=mugofdoom;51041448]Whelp, took the AR-15 pistol out to shoot today and didn't really have any problems with it besides two failures to eject out of 35 rounds.
I'm thinking it may be a problem with the extractor, so I may try swapping out the bolt with my other AR-15 and see if that makes a difference. I haven't had any problems with it in all the years I've had it, though it's a full-sized, 20" barrel retro Colt 604 replica, so that might make the difference.
I can't hit the broad side of a barn from inside the barn with this thing due to the shitty, cheap-ass sights I have on it at the moment and the ridiculously short barrel, but holy shit is it fun to shoot, lol. The muzzle blast is ridiculous even with a flash hider/compensator.
Here's a shitty phone picture of it if anyone's interested:
[img]http://i.imgur.com/d6EBKjn.jpg[/img][/QUOTE]
Can you put a coin or something next to it for scale?
So are AK prices in general completely fucked at this point? Everything seems to be approaching the pricepoint where you just save a little more and nab an arsenal.
[QUOTE=ShawnSpencer;51047418]Can you put a coin or something next to it for scale?[/QUOTE]
I'd imagine the trigger guard area from the trigger to the magwell would be about the size of a quarter since it's I assume a 5.56 AR pistol.
[QUOTE=evilweazel;51047428]So are AK prices in general completely fucked at this point? Everything seems to be approaching the pricepoint where you just save a little more and nab an arsenal.[/QUOTE]
I noticed that even with decent quality AKs. Getting in the price range of higher quality ARs.
Maybe I should just buy ajacks WASR next time I make it up to Champaign
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