Mosin Nagant PU scope suddenly out of focus

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ak77

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Hello everyone,

I've had a sniper 91/30 for few years by now, have never had issues. I am casual shooter, and it was accurate enough for me to punch holes at 100 and hit gongs at 300-400 most of the times.
I took it apart few months ago, refinished the stock. I put everything back together a couple of weeks ago and now the reticle in the scope is majorly out of focus. The posts are fuzzy to the point where I can't aim at all. Also, another thing i notices - i started seeing the ghost shape of the front sight at the bottom of the scope.
Any ideas why it would happen?
Any way to fix it without costing arm and leg?
I have seen bunch of options for mounting the different mount and scout scope, also seen bunch of reviews trashing this option.
Lastly, and it may sound like a stupid question, but can i just pick up a scope with the correct tube size and use my PU side mount with it?

I talked to my buddy, he asked me if I dropped it. I don't remember doing it, but can't rule it out. And if I had, it would've been from about table height onto the carpeted floor. I really hope it is more sturdier then that.
 
Is it out of focus, or are the lens cloudy?

I shot mine on a hot day after a brief shower. I think I had some water intrusion and on the next shot the inside of the front lens got splashed by the recoil. It is slowly clearing up, but was pretty foggy for a few days.

Seeing the ghost shape of the front sight is normal. I try to line it up with the vertical reticle.
 
Hello bp2626, if I ever have a question If I can do whatever the hell I want with MY rifle or not I am sure will ask you. In the mean time you can go back to your purist camp. I didn't ask an opinion nor permission about doing what I did.

Hey Bulver,
Lenses don't seem cloudy. Scratch that, lenses are NOT cloudy. I just got back from the range, I thought I'd see how it goes there when i put it on the rifle. It doesn't go anywhere. Posts are still out of focus and fuzzy, I couldn't get the pointy end of the vertical post onto the target because there was no pointy end anymore.
Moreso, the target themselves where out of focus as well. Basically same as when you take your sighting scope, and turn the focusing dial just a touch - you can still see the general shape of the target, but you can't do anything about it.

I haven't seen any info online or anywhere about overhauling those scopes. Considering how idiot-proof the rifle is, and how old the technology is, i'd think the scope itself shouldn't be something super-difficult to take apart and get it back together. When I shake it i hear rattle inside. Sounds like something came off and now screwing the whole thing.
 
ak77 said:
Hello bp2626, if I ever have a question If I can do whatever the hell I want with MY rifle or not I am sure will ask you. In the mean time you can go back to your purist camp. I didn't ask an opinion nor permission about doing what I did.

Hey Bulver,
Lenses don't seem cloudy. Scratch that, lenses are NOT cloudy. I just got back from the range, I thought I'd see how it goes there when i put it on the rifle. It doesn't go anywhere. Posts are still out of focus and fuzzy, I couldn't get the pointy end of the vertical post onto the target because there was no pointy end anymore.
Moreso, the target themselves where out of focus as well. Basically same as when you take your sighting scope, and turn the focusing dial just a touch - you can still see the general shape of the target, but you can't do anything about it.

I haven't seen any info online or anywhere about overhauling those scopes. Considering how idiot-proof the rifle is, and how old the technology is, i'd think the scope itself shouldn't be something super-difficult to take apart and get it back together. When I shake it i hear rattle inside. Sounds like something came off and now screwing the whole thing.
Click to expand...

Perhaps I was being a bit rude. I really wish you hadn't re-finished this milsurp but I guess you're free to deface and devalue your own possessions if you choose and it's none of my business. However, you did post it on a public forum but you know, property rights and such so, I retract my earlier #####y comments. However, when you're asking technical questions about a collectable rifle you should try and omit such details as you'll receive a warmer response from nerds like me who know the technical answers. I apologize for being a ####.
 
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1) Unscrew eyepiece. hope you will be able to do this with hand, in other case use strap wrench
2) Unscrew 1 or 2 small locking screws at tube (depending from manufacturer of scope). Anyway, if scope was ok, and lost focus, they are alredy loose.
Picture here
http://s017.radikal.ru/i423/1207/e3/174a31958737.jpg

3) Screw inside or unscrew central lens block. You need to catch correct position. It will be good if you will see hole (dent) at the thread of central block from locking screw through hole for it - in this case you have correct position.

http://s008.radikal.ru/i305/1207/e0/057c2cda242f.jpg
http://s54.radikal.ru/i145/1207/6f/23e53bcf7e64.jpg
You can check result of moving of central lens block only by screwing eyepiece at the place.


Hope you dont have another central block construction (early type), for it scheme will be little different
 
ak77 said:
I haven't seen any info online or anywhere about overhauling those scopes. Considering how idiot-proof the rifle is, and how old the technology is, i'd think the scope itself shouldn't be something super-difficult to take apart and get it back together. When I shake it i hear rattle inside. Sounds like something came off and now screwing the whole thing.
Click to expand...

http://forums.gunboards.com/showthr...ing-and-repair-instructions-(Many-pics-inside!)

Lots of good reading with pictures. Something must have let loose as it shouldn't rattle.

Good hunting:)
 
Very diplomatic bp2626. I applaud your humility. You weren't being a ####. Makes our original ones worth more.
 
bp2626, apology accepted. In the hind sight I realize that the fact that I redid the stock is not a relevant information to my question, but what's done is done. bshooter, i agree that the retraction of the original message by bp2626 was diplomatic. However he was being a ####, both by my and his own opinion. I have owned MN long enough to know that some people take any kind of work done on MNs as direct insult to themselves. I do however suggest those people to actually let others make that mistake. I wasn't asking for the opinion if I should do refinish. I've already did it. Let me be, let me live with my mistakes, and be happy that your untouched MNs are worth more now. TBH i just got tired of cleaning shellack flakes from myself every time I handle my gun.

2 Ratnik and Bulriver. Thanks guys, exactly the kind of info I was looking for. The eye-piece doesn't unscrew by hand, everything is pretty tight . date of manufacture is I believe 1943

However, when you're asking technical questions about a collectable rifle you should try and omit such details as you'll receive a warmer response from nerds like me who know the technical answers.
Click to expand...
I am sorry bp2626, but it sounds like kindergarden. "I know the answer, but not telling, because I don't like you and what you did". Being a nerd myself (different kind though) I don't mind sharing information regardless the circumstances. If anything, simple answer here (provided you have one) could stop someone else from posting similar question with similar upsetting information. Thus it would prevent you from reading it. You should really look at the bigger picture here.
 
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I put a side mount of my cz858 some people would say I defaced a historic firearm, some of you would guess my answer to that.
hint:
It involves a male donkey.
It involves a dark smelly opening.
It involves some bending forward.
your firearm, you own it, you do what you want.
my firearms, I own them, I do what I want.
 
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