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zomie
06-25-2012, 6:38 PM
Well a while back I posted:
http://www.calguns.net/calgunforum/showthread.php?t=579955

I ended up with two of the buggers. One I could mess with and this is the story of that. The other one is perfectly stock back in the safe.

The project had a few goals:
-Reasonable recoil
-Fun, cheap, yet powerful plinker
-Must be somewhat accurate at 100 yards (1-2 inch groups)
-Comfortable
-Quick Targeting
-Cheap!

Parts List:
-Mosin Rifle 1943 91/30 - $119 Big Five
-ATI Monte Carlo Stock - $60 http://www.amazon.com/ATI-Mosin-Nagant-7-62x54R-Monte/dp/B000HOT2SK/ref=sr_1_1?ie=UTF8&qid=1340676578&sr=8-1&keywords=monte+carlo+stock
-3/8 to Weaver Adapter - $8 http://www.amazon.com/UTG-11mm-Weaver-Adapter-Adjustable/dp/B001CJ67E6/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1340676638&sr=1-1&keywords=3%2F8+to+weaver
-2x7x32 Pistol Scope - $30 http://www.amazon.com/NcStar-2-7X32-Pistol-Scope-SPB2732B/dp/B000FH6M00/ref=sr_1_1?ie=UTF8&qid=1340676677&sr=8-1&keywords=ncstar+pistol+scope
-bipod adapter - $8 http://www.amazon.com/UTG-Swivel-Stud-Picatinny-Adaptor/dp/B0053EQNA4/ref=sr_1_5?ie=UTF8&qid=1340676752&sr=8-5&keywords=bipod+adapter
-Muzzle Brake - $7 http://www.amazon.com/NcStar-Nagant-Muzzle-Bolt-On-AM44/dp/B000V2SRB6/ref=sr_1_1?ie=UTF8&qid=1340676809&sr=8-1&keywords=muzzle+brake+mosin
-Krylon Tan Plastic Textured Paint $5 OSH

Total: $267

Steps:
1. Strip the beast and clean with brake cleaner, and elbow grease. Knock out the two pins holding on the rear sight and tap it off. The barrel will require lots of love.
2. Cut the barrel down to 24 inches
3. Recrown the barrel to a 11 degree target crown and run a brass screw around the hole with some abrasive.
4. Reblue the end of the barrel.
5. Take muzzle brake and cut off useless clamp. Drill out end of muzzle brake with a 5/8 bit. Drill and tap two 6/32 holes and add set screws. Reblue/paint the newly exposed metal. Also polish up rough machine marks.
6. Mix up a small batch of jb weld and adhere the muzzle brake to the barrel. Use the set screws to clamp it down. There should be almost no play and require a bit of work to get the muzzle brake on there. (I should have threaded this, but a forever bond was fine by me). Make sure you get the alignment right here or you will be sorry!
7. File the living crap out of the ATI stock. There are two things that are required. You need to free float the barrel and you need to make clearance for the magazine assembly to allow for proper cycling of ammo.
8. Add JB weld puddy to the contact points around the receiver. You must do this quickly! Then use the screws to clamp it down right forcing the jb weld to extrude. This will do a very cheap job bedding the stock.
9. Add a small filed washer under the trigger spring and also add a coil spring around the base of the trigger. This will give you a redneck trigger job and drop the pull by a few pounds.
10. Pull it all apart and sand down with 220 grit paper to rough the plastic and spray on 3 layers of krylon tan textured spray.
11. Reassemble and profit!

It is pulling quarter sized groups but please check the attached image. There are two groups in that photo where I did a quick adjustment. It isn't bad for an 80 year old barrel and do it yourself project. I shot the rifle stock and I was getting groups of 4-6 inches on this one (the crown was gone which also helped kick me over the edge to make this abomination). The most fun has been at the tin can range where I can launch bottles about 30 feet in the air :)

The muzzle brake actually does quite a bit. I would say it adds roughly 25-30% reduction in recoil. I was able to shoot over 200 rounds through her on Sunday with no shoulder issues.

Since the g/f took over my 10/22 and the noise/recoil of the mosin bothers her, I think this will become my primary plinker :)

MrPlink
06-25-2012, 7:14 PM
1 to 2 moa is only somewhat accurate? I guess years of M4 style AR owners making stuff up on the internet has changed the standard...

chrisf
06-25-2012, 7:15 PM
Thats badass. I might do the same. I wonder how accurate the mosin would be if you cut the barrel down to about 18''??

zomie
06-25-2012, 7:19 PM
1 to 2 moa is only somewhat accurate? I guess years of M4 style AR owners making stuff up on the internet has changed the standard...

Oh I just meant it wasn't designed to be a competition gun. Yeah in terms of a decent rifle this could be used for hunting with no issues.

zomie
06-25-2012, 7:21 PM
Thats badass. I might do the same. I wonder how accurate the mosin would be if you cut the barrel down to about 18''??

I am not sure if it would get up to velocity or have enough barrel to spin a heavy round but at shorter ranges I am sure it would be just as accurate.

whoawhoawhoa
06-25-2012, 7:37 PM
that looks like it came out very nicely!

have you considered turning the bolt and using a scope with shorter eye relief like conventional riflescopes?
then again it might bump the cost up significantly which probably defeats the purpose

and if you use google you can find a project a college student did on the different velocities for different barrel lengths of a mosin that he slowly cut down if you are interested

dre147
06-25-2012, 7:50 PM
wow nice mosin

chrisf
06-25-2012, 11:12 PM
that looks like it came out very nicely!

have you considered turning the bolt and using a scope with shorter eye relief like conventional riflescopes?
then again it might bump the cost up significantly which probably defeats the purpose

and if you use google you can find a project a college student did on the different velocities for different barrel lengths of a mosin that he slowly cut down if you are interested
Would you happen to have a link? Ive googled it and cat find it. OP that really is a nice build. Most sporterized mosins make me want to barf. Now thanks to you, Im looking for a mosin to build. Ill post pics up once complete (months and months later)

zomie
06-25-2012, 11:13 PM
http://honors.usf.edu/documents/Thesis/U82488180.pdf

Would you happen to have a link? Ive googled it and cat find it. OP that really is a nice build. Most sporterized mosins make me want to barf. Now thanks to you, Im looking for a mosin to build. Ill post pics up once complete (months and months later)

zomie
06-25-2012, 11:18 PM
Yeah that is certainly something I considered. I think the rifle may be worth it in terms of accuracy. I actually have a 4-16x scope under repair right now as well. I also have a bushnell 3-9x with 6 inches of eye relief that would be good. I could use the ATI kit but I would need access to a tig or a mig welder I feel to do it right:
http://www.amazon.com/ATI-Mosin-Nagant-Bolt-Handle/dp/B002ZVMJCO/ref=sr_1_1?ie=UTF8&qid=1340694939&sr=8-1&keywords=ati+mosin+bolt

I could also have the bolt serviced for $30:
http://www.ebay.com/itm/Mosin-Nagant-Bolt-Bending-Machining-SERVICE-Please-read-details-/230777658543?pt=LH_DefaultDomain_0&hash=item35bb6b9caf#ht_1978wt_1396

I am kind of enjoy the scout setup personally as it is fast to get your target, but it certainly sucks out at 100yards plus.

that looks like it came out very nicely!

have you considered turning the bolt and using a scope with shorter eye relief like conventional riflescopes?
then again it might bump the cost up significantly which probably defeats the purpose

and if you use google you can find a project a college student did on the different velocities for different barrel lengths of a mosin that he slowly cut down if you are interested

chrisf
06-25-2012, 11:38 PM
Op you should have made a youtube video :-) What did you do after you cut the barrel? Sand it down flat and go or??

chrisf
06-25-2012, 11:42 PM
The only thing im worried about is recrowning it.....

zomie
06-25-2012, 11:43 PM
Op you should have made a youtube video :-) What did you do after you cut the barrel? Sand it down flat and go or??

LOL No please never do this ... yes I chopped it off with a hacksaw, but always use a lathe or a recrowning tool to do the job right. This is probably one of the biggest factors in the accuracy I got. The counterboring job pretty much was crap from the place that refitted the rifle.

http://www.brownells.com/.aspx/pid=628/Product/79-deg-MUZZLE-CROWNING-CUTTER

The funny thing with a tool like this is it makes you realize no matter how good your straight edge is you are never getting that cut perfectly straight. This tool does a great job rebuilding the crown.

chrisf
06-25-2012, 11:48 PM
If you dont mind. When I get everything ready to go, I will messange you with a couple questions. You wouldnt happen to live in the bay area would you?

zomie
06-25-2012, 11:53 PM
Yeah feel free! I live in the San Jose area actually.
If you dont mind. When I get everything ready to go, I will messange you with a couple questions. You wouldnt happen to live in the bay area would you?

new1911
06-26-2012, 5:24 AM
very nice! looks pretty modern the way you've modded your Mosin.

Is the price $119 from Big 5 a sale price or every day? thinking of picking one up myself

Flintlock Tom
06-26-2012, 6:19 AM
Nicely done, looks great!

lazyH
06-26-2012, 7:52 AM
looks great, have you noticed a diference in recoil with that brake?

zomie
06-26-2012, 10:36 AM
very nice! looks pretty modern the way you've modded your Mosin.

Is the price $119 from Big 5 a sale price or every day? thinking of picking one up myself

No that was a sale price, but they have a 15% off coupon for today and tomorrow on all firearms actually. It may be a decent time to get one.

zomie
06-26-2012, 10:37 AM
looks great, have you noticed a diference in recoil with that brake?

Yeah kind of a surprise right? It is a cheap knock off, but after I cleaned it up the brake is at least somewhat affective. I put 200 rds through it no issues with my shoulder. I am sure anyone with a stock mosin will tell you that it is hard to go past 40.

chrisf
07-04-2012, 3:32 PM
Well like I said.... I jsut came back from buying a mosin for $100 cash and carry. Ordering everything right now. Im doing a couple of things different though. Barrel is getting cut down to 18.5" and a thumbhole stock. So OP expect some messages coming!!!

johnthomas
07-04-2012, 3:48 PM
I have seen lots of Mosin Nagant's in various stocks, muzzle brakes and scopes. Yours my friend got my heart beating. Great job.

chrisf
07-04-2012, 3:57 PM
I have seen lots of Mosin Nagant's in various stocks, muzzle brakes and scopes. Yours my friend got my heart beating. Great job.
I know thats how I feel. Thats the first mosin I seen that made me actually go and buy one to make.

Kappy
07-04-2012, 4:26 PM
Beautiful! I need to finish my project eventually. I bought a laminate stock and need to bed the rifle. Maybe I'll do that Monday.

BlairB
07-04-2012, 5:50 PM
Great build! You are making my wallet nervous....

zomie
07-05-2012, 12:57 AM
Wow thanks for all of the feedback. Yeah I got a few looks from folks at the range with her. The rangemasters seemed to think she was pretty sweet and I even had two others sitting right next to me with mosins who asked what kind of rifle I had :)

Well for the awesome replies here is a pic of her in her natural habitat:
http://farm8.staticflickr.com/7109/7506762478_b68de58acb_c.jpg

Maddog5150
07-05-2012, 1:39 AM
1 to 2 moa is only somewhat accurate? I guess years of M4 style AR owners making stuff up on the internet has changed the standard...

You mean all those 1/4" groups at 500 yards was bs?

senorbueno
07-06-2012, 11:41 AM
Dam looks like I have some work to do now lol nice looking mosin

MaHoTex
07-06-2012, 12:31 PM
How to you mount the 3/8 to Weaver Adapter to the rifle?

Can you get a close up picture of that for me, I would really appreciate it.

Thanks!

BomarFab
07-06-2012, 1:10 PM
I kind of want to do this now, looks like a fun rifle. I have a lathe and some welders, and I have made a few brakes for other rifles.

zfields
07-06-2012, 1:34 PM
Pretty cool.

7.62x54R
07-07-2012, 5:36 AM
If its not one of these don't care :rolleyes:

http://mosinnagant.net/sniper%20section/images/25a.jpg
http://mosinnagant.net/sniper%20section/images/PEtop34earlyright.jpg
http://mosinnagant.net/sniper%20section/images/PEMsiderailright.jpg

dmax11
07-07-2012, 5:51 AM
LOL No please never do this ... yes I chopped it off with a hacksaw, but always use a lathe or a recrowning tool to do the job right. This is probably one of the biggest factors in the accuracy I got. The counterboring job pretty much was crap from the place that refitted the rifle.

http://www.brownells.com/.aspx/pid=628/Product/79-deg-MUZZLE-CROWNING-CUTTER

The funny thing with a tool like this is it makes you realize no matter how good your straight edge is you are never getting that cut perfectly straight. This tool does a great job rebuilding the crown.

Yeah feel free! I live in the San Jose area actually.


might have to hit you up sometime to do a re crown on my mosin. i have kept mine mostly stock, just put a scout scope on it and the biggest thing i have done to increase accuracy was to chop off 1/2" off the tip of the BBL and i did a ghetto crown job with a fine file and a T square once i felt i had it completely square i used a brass screw and lapping compound to slightly recess the lands. this easily doubled the accuracy of my 91/30 it went from 4~ inch groups at 50 yards to under 2" at 50. still not as good as yours but it was a big improvement none the less.

Dreaded Claymore
07-07-2012, 7:43 AM
How did you stop the JB Weld bedding from adhering to the action? Petroleum jelly?

rino
07-07-2012, 9:49 AM
when i did mine with j b weld i wrapped the action with plastic wrap

zomie
07-07-2012, 12:01 PM
How to you mount the 3/8 to Weaver Adapter to the rifle?

Can you get a close up picture of that for me, I would really appreciate it.

Thanks!
There are two pins in the base of the rear sight. You just need to knock those out using a punch. You can then tap it off with a brass hammer. If it is an earlier model it may be soldered on and require a torch to melt the silver solder.

Once you knock it off you will discover a nice 3/8 dovetail :)

How did you stop the JB Weld bedding from adhering to the action? Petroleum jelly?

LOL Honestly, just used lots of machine oil :) I didn't have any problems sticking. I also used jbweld putty with doesn't ozze all over the place.

If its not one of these don't care :rolleyes:


Of course you don't you are a troll purest :) I have a stock mosin in the safe to that will never be altered. You commentary was very helpful here, please continue to enlighten us!

might have to hit you up sometime to do a re crown on my mosin. i have kept mine mostly stock, just put a scout scope on it and the biggest thing i have done to increase accuracy was to chop off 1/2" off the tip of the BBL and i did a ghetto crown job with a fine file and a T square once i felt i had it completely square i used a brass screw and lapping compound to slightly recess the lands. this easily doubled the accuracy of my 91/30 it went from 4~ inch groups at 50 yards to under 2" at 50. still not as good as yours but it was a big improvement none the less.

I had a very similar experience! The crown certainly made a big difference creating very fine groups. Honestly I think the gun is more accurate then my groups but the surplus ammo has become a limiting factor at this stage. I am still very happy with the rifle :) 100 yards is also very difficult with that scope as you can't be as precise as you want to be. It still plinks very well and at the 100 yard tincan range I do very well. It certainly would make a very solid hunting rifle.

MaHoTex
07-07-2012, 1:15 PM
There are two pins in the base of the rear sight. You just need to knock those out using a punch. You can then tap it off with a brass hammer. If it is an earlier model it may be soldered on and require a torch to melt the silver solder.

Once you knock it off you will discover a nice 3/8 dovetail :)


Excellent! That is all I need to know about that! I will be working down this path for sure.

90runner
07-07-2012, 6:30 PM
http://i13.photobucket.com/albums/a297/curly_c/Facebook/Mobile%20Uploads/288239_10151036114531509_1806581804_o.jpg

I just finished mine too. I had a gunsmith do the scope mount and he did a great job. I like your paint job. Very nice.

zomie
07-07-2012, 11:53 PM
http://i13.photobucket.com/albums/a297/curly_c/Facebook/Mobile%20Uploads/288239_10151036114531509_1806581804_o.jpg

I just finished mine too. I had a gunsmith do the scope mount and he did a great job. I like your paint job. Very nice.

Love the Rifle! Very nice work indeed! What did it run ya for the scope mount, and turn down handle?

This is a huge debate I am having my 7x scope is amazing for very quick target spotting but much past 100 yards it is kind of useless and holding back the rifle.

p1choco
07-08-2012, 7:56 AM
How did you stop the JB Weld bedding from adhering to the action? Petroleum jelly?

Use Pam cooking spray!

90runner
07-08-2012, 10:03 PM
i bought the ATI mount and bent bolt handle for like 26$. the gunsmith charged $65 to install both. I am extremely happy with it so far. The action works much better with the handle at that angle. Seems more ergonomic.

Kappy
07-08-2012, 10:57 PM
My sporterized... which is almost finished...

http://www.weaponscache.com/forum/attachments/rifles/650d1298144450-sporterized-mosin-nagant-4.jpg

http://www.weaponscache.com/forum/attachments/rifles/649d1298144444-sporterized-mosin-nagant-3.jpg

http://www.weaponscache.com/forum/attachments/rifles/647d1298144418-sporterized-mosin-nagant-1.jpg

I just need to bed it and finish the stock.

DaBrew
08-27-2012, 8:16 PM
I've been looking at the weaver/dove tail adapter but was wondering if it would hold up to the recoil. Do you think the muzzle brake has any affect on the survivability of the scope? Been slowing doing this to mine as well, glad somebody found a good combination of parts that work.
What range was that pic taken at?

zomie
08-28-2012, 11:06 PM
Mine was taken over at the Los Gatos rod and gun club.

Yeah it will help some ... what kind of a scope mount are you going after?

Lone_Gunman
08-29-2012, 7:58 AM
Ok dang it. This thread is going to cost me some money. I've been wanting a Finn M39 because they're supposedly the most accurate Mosins, but I think I'm going to go this route and sporterize a 91/30. So actually this thread is going to save me some money, yeah, that's it. That's what I'm going to have to explain to my wife.

DaBrew
08-29-2012, 11:14 AM
Mine was taken over at the Los Gatos rod and gun club.

Yeah it will help some ... what kind of a scope mount are you going after?

Originally I was looking at the brassstacker because I didn't think the dove tail setup wouldn't hold with the recoil
http://brassstacker.com/scout-scope-mount/

but since you showed it works, going the same route as you would save me quite a bit of money

zomie
08-30-2012, 1:13 PM
Originally I was looking at the brassstacker because I didn't think the dove tail setup wouldn't hold with the recoil
http://brassstacker.com/scout-scope-mount/

but since you showed it works, going the same route as you would save me quite a bit of money

Oh yeah what I did is a far stronger mount and offers a better profile as you get rid of the rear sight. There are several different options if you don't want to go for a scout type mount so I was curious if you were doing that.

DaBrew
08-30-2012, 5:15 PM
Oh yeah what I did is a far stronger mount and offers a better profile as you get rid of the rear sight. There are several different options if you don't want to go for a scout type mount so I was curious if you were doing that.

I do like the scout scope style. Not looking for anything extremely powerful, just something that won't completely block the target out @ 100 yards like the front sight post does now :D

DaBrew
09-13-2012, 12:22 PM
Sorta copying your build. Didn't shorten the barrel though. Used a king armory pin on brake. My brother in law has a little machine shop in his garage so we were able to rig it to drill for the pins http://s411814840.e-shop.info/shop/article_7/KA-1230D-brake_suppressor-for-M91.html?shop_param=cid%3D2%26aid%3D7%26
Works really good, my shoulder is really happy with the recoil reduction :D
Just got the weaver adapter ordered (snuck it in with some other amazon items...don't tell my wife ;)) and I've been working on making my ATI stock fit. Had a hard time loading the magazine the last time compared to the wood stock

Looking forward to getting it together, thanks for the info on your build

NOTABIKER
09-13-2012, 1:19 PM
it looks very nice, you did a great job. but i still like them the org way. you should be proud and most younger shooters prefer what you did. me i spend about 20 bucks on cleaning materials and stock re finishing and i am also happy. to me cutting a barrel is like low riding a honda civic.

zomie
09-13-2012, 1:52 PM
it looks very nice, you did a great job. but i still like them the org way. you should be proud and most younger shooters prefer what you did. me i spend about 20 bucks on cleaning materials and stock re finishing and i am also happy. to me cutting a barrel is like low riding a honda civic.

Oh i won't argue with ya, I have an original as well :) It was the nicer of the two I purchased. Just because I dropped my civic doesn't mean I don't appreciate the original vehicle.

emptybottle151
09-13-2012, 4:10 PM
If its not one of these don't care :rolleyes:

http://mosinnagant.net/sniper%20section/images/25a.jpg
http://mosinnagant.net/sniper%20section/images/PEtop34earlyright.jpg
http://mosinnagant.net/sniper%20section/images/PEMsiderailright.jpg

I have a PU but what are the two bottom ones? :eek: