Custom barrel for 7.62x39mm for a semi-auto

[Dogfish858]

Way I look at it:

-- Already own gun. +/- free.
-- Barrel cut and rechambered <$200.
-- Press in and press out, two hours of shop time at a machine shop. Maybe one more for tapping in the new gas line.
-- Look on the face of fun police: priceless.

There's a lot of people that say "2 MOA; incapable of further precision." My gun already shoots that with open sights, bad eyes, and cheap ammo. SKSs can shoot 1 MOA if treated right, and they're junk. 858s are solid guns. When the hammer goes "Click", nothing moves until the bullet is out of or almost out of the barrel. The gas rod system itself can cycle off .22 LR. If that's all that's needed, then why not restrict the gas flow until it's functioning at the bare minimum? Reduce the inertia produced by the gas rod hopping around; maybe restrict side-to-side movement by putting it inside a tube, and see what happens.

 

[m39a2]

We did an SKS many years ago using a very nice P-14 .303 barrel, cut off the .303 chamber, re chambered it to 7.62 x 39mm and fitted it to the action. The rifle was then put into a "Drogonov" type stock and fitted with a piece of angle iron bolted to the left side of the receiver to act as a scope mount and case deflector. The gas system was shortened by 1/4" cause I cant use a tape measure properly LOL and the rifle shoots very well. About 1 to 1.5 minutes with standard Chinese non corrossive ball. I've worked up a great load using 150 grain bullets and IMR powder that shoots very well in this rifle as well. It can be done, would I do it again? Probably not, lots of work but it sure is fun to drag out the the range and watch the looks on the other shooters faces!

Scott

 

[lejarretnoir]

He re-barreled my storm to non-restricted. I've had him do more than one.

FYI. Joe doesn't do blueing.... He uses a different finish. Last time I asked for a quote on finishing it was around $120 for a long gun.

So it was just a rebarreling to non restricted for a blowback pistol carbine action?
*Edited: Barrel is easily removed via a barrel nut.*
I don't deal with restricted conversions.

What the OP has in mind is a lot more than you had done. He's talking custom gun from the ground up.

 

[lejarretnoir]

We did an SKS many years ago using a very nice P-14 .303 barrel, cut off the .303 chamber, re chambered it to 7.62 x 39mm and fitted it to the action. The rifle was then put into a "Drogonov" type stock and fitted with a piece of angle iron bolted to the left side of the receiver to act as a scope mount and case deflector. The gas system was shortened by 1/4" cause I cant use a tape measure properly LOL and the rifle shoots very well. About 1 to 1.5 minutes with standard Chinese non corrossive ball. I've worked up a great load using 150 grain bullets and IMR powder that shoots very well in this rifle as well. It can be done, would I do it again? Probably not, lots of work but it sure is fun to drag out the the range and watch the looks on the other shooters faces!

Scott

Scott, that's usually what happens. Done once and never again.

 

[gastonglock]

So it was just a rebarreling to non restricted for a blowback pistol carbine action?
*Edited: Barrel is easily removed via a barrel nut.*
I don't deal with restricted conversions.

What the OP has in mind is a lot more than you had done. He's talking custom gun from the ground up.

You don't know what your talking about.... You need a special tool to do the storm. Yes, once you have the tool it's easy.... Now go find one.
You don't deal with restricted conversions? Are you a bussiness? If you are you're over priced and I'm not surprised you don't know jack..
Just so we're on the same track.... The op is not talking about some custom ground up rifle. If you take the time to read the first post in this thread. He wants to re-barrel a sks or vz. It's not rocket science.

Op, give joe a call. The peanut gallery has nothing to offer.

 

[lejarretnoir]

You don't know what your talking about.... You need a special tool to do the storm. Yes, once you have the tool it's easy.... Now go find one.
You don't deal with restricted conversions? Are you a bussiness? If you are you're over priced and I'm not surprised you don't know jack..

Op, give joe a call. The peanut gallery has nothing to offer.

Hilarious!
Get the tool or make it yourself and do it your self! People do it on the internet.
WOW! Take a chill pill dude. Still don't know how the Beretta Cx4 Storm even compares to what the OP wants
BTW, you don't know jack either.
I can see where this thread is going.
Over to you.

 

[gastonglock]

I seem to know more than you.... I can read also, it's pretty clear you can't. The op asked about a $600 barrel change and you're building a $3000 custom rifle from the ground up.

Find me a storm tool..... Please find me one.

 

[lejarretnoir]

I seem to know more than you.... I can read also, it's pretty clear you can't. The op asked about a $600 barrel change and you're building a $3000 custom rifle from the ground up.

Find me a storm tool..... Please find me one.

No he didn't.
Can you make the tool? I can.

 

[gastonglock]

Here comes an other crazy idea built upon my knowledge, and lack there of when it comes to practical experience with the .39 cartridge.

I feel the need to reinvent the wheel. I think it stems from my "I have something that no one else has" mentality. Because, why would you want something that everyone else has? I may be out in left field, so convince me that I'm on crack.

I am wanting to put a custom barrel on either an SKS or 858. I want to have a rifle twist of 1:7.5 to use heavier 150 maximum grain bullets as I intend to deer hunt with this rifle. Second, I am looking for a barrel length of 542mm (21-5/16" or 21-3/8"). The reasoning for this ideological barrel length comes from hours of study of accuracy comparisons from other shooter's experience. The barrel length of choice stems from the Zastava M72 and Tabuk DMR. Just the right length to add a small boost in muzzle velocity. The barrel length is not definite, but I want harness as much power for the heavier bullet so it does not instantly drop like a rock. And yes, I am aware of the .39 ballistic qualities. I am not hoping for a match grade or 1000m precision rifle here.

With that said, what platform to use? SKS, or 858? And who will do the work? I can attempt it myself, but I lack the tools and workspace... and it would probably take me two rifles to get it done properly.

Personally I want to use the 858. Yes, the SKS is cheaper and the receiver is threaded, but the 858 has a superior action. So who gunsmiths 858s? Would this be worth the cost? (probably not, but it would be unique)

Nothing about trigger jobs or other custom work.... Just a simple barrel change. The only complication is the barrel on the vz is pressed in.
Yes, I can and have fabricated tools... If the storm is so easy then make me one up.

 

[lejarretnoir]

Now that the thread has been hijacked, here you go.
h t t p://www.msgunowners.com/t26292-beretta-cx4-barrel-threading
Have a good read and make it your self.

Yes, I'm not a licensed manufacturer and cannot undo restricted conversions for the public, but telling me I don't know anything is pure conjecture on your part sir.
I apologize to the OP and will butt out of this thread as I bow to gastonglock's superior knowledge and therefore cannot add anything to help.
Have a good day.

 

[Splatter]

I had one of the original Ruger Mini-30's, it had a .308" bore and worked just fine with surplus ammo. It had a 1:10 twist and worked very well with my reloads using 170 grain flat points (IMR 3031 powder)
As a rule, Ganderite's advice and recommendations can be trusted.

If you are going to change the barrel, you might think about 6.5x39.

 

[BeaverMeat]

In the end, you'll have a cool looking 2 MOA 7.62x39 shooting surplus ammo.

If tacticool is your thing

vz 58/97

A custom some guy did in Czechoslovakia

Here is a link to the site with pics of the build... use google translate. vz 58 Expert Sniper

I am not too much into the tacticool look, just imagine a IWD wood stocked vz 58 with a long heavy barrel with sights still intact, a flash hider/muzzle brake, and a scope. I do not need a bi-pod or a bunch of rails to mount a flashlight or cup holder.

I will be giving Dlask a call, if I can get an answer. If anyone else want to do a similar build we can make it worth his while by doing more than just one.

 

[Dogfish858]

If tacticool is your thing

vz 58/97

A custom some guy did in Czechoslovakia

Here is a link to the site with pics of the build... use google translate. vz 58 Expert Sniper

I am not too much into the tacticool look, just imagine a IWD wood stocked vz 58 with a long heavy barrel with sights still intact, a flash hider/muzzle brake, and a scope. I do not need a bi-pod or a bunch of rails to mount a flashlight or cup holder.

I will be giving Dlask a call, if I can get an answer. If anyone else want to do a similar build we can make it worth his while by doing more than just one.

No cup holder? (face falls)

 

[Dogfish858]

"Lots of smart people say that Sa 58 is not in the least be used as a sniper rifle, since it does not sufficiently strong and long barrel does not have adequate pitch grooves end mechanism is not designed to do and lots of other clever arguments. This is all true. It's not super accurate sniper with accuracy of 0.5 MOA, but with a Versa Pod bipod, new Belarusian PSO Scopes 8x42-3, čtyřkomorovým silencer, ammunition subsonickým průbojnězápalným laborovaným to 12 grains and I doplňkama it really dangerous with a silencer at 100m, without him around the five hundred. And-admit it looks very beautiful, fragrant oil and never jealous ..."

 

[Splatter]

.... I do not need a bi-pod ...

Seriously, unless you are going for a full-on front rest, you probably do want a bipod. Or you're going to cart around a big-assed bad of sand.

Even with all the TR tricks of the sling, glove and jacket, I'm pretty sure everyone can hold better with a good bipod.

 

[BeaverMeat]

Seriously, unless you are going for a full-on front rest, you probably do want a bipod. Or you're going to cart around a big-assed bad of sand.

Even with all the TR tricks of the sling, glove and jacket, I'm pretty sure everyone can hold better with a good bipod.

Yes, sniper is not the proper designation. I never said I wanted a sniper rifle. As for the bi-pod... it is not needed. I indicated previously that I want to hunt deer with it. And here in the parkland there is little time to find a good surface to extend the bi-pod. And the target range is no more than 400 yards. At most I will put one of those tie-strap for-grip deals on to it.

All I want is a vz 58 that is just a little better than the next guys. A deer rifle that shoots relatively cheap ammunition. Semi-auto for those times when you miss And if needed a good ol' plinker for shooting bushed cars, beer cans, etc. Mostly I want other hunters to look at it with a "wtf" look on their face while they clutch their overpowered .300 win mags for deer hunting.

 

[Splatter]

... And here in the parkland there is little time to find a good surface to extend the bi-pod....

I don't care much if you ever use a bipod; but if the surface is suitable to walk or go prone on, you can drop your bipod.
Plus I use my bipod on tree limbs, fence posts, fence wire as well as the ground.

... I want other hunters to look at it with a "wtf" look on their face while they clutch their overpowered .300 win mags for deer hunting.

Yup, just remember that when you are loading your ammo, resist the urge to load tough bullets. You'll need to load bullets suitable for .30-30, because that's the sort of striking velocity you'll be getting, and a game-bullet suitable for .308 or .30-'06 might not expand.

 

[BeaverMeat]

Plus I use my bipod on tree limbs, fence posts, fence wire as well as the ground.

I don't see many people using bi-pods in this area. No one I know uses, or has used one while hunting. That is where my criticism stems from. I am not against having one, to me it is not a necessity.

On an interesting side note. The bayonet on the SKS was designed to be used as monopod while prone.

Yup, just remember that when you are loading your ammo, resist the urge to load tough bullets. You'll need to load bullets suitable for .30-30, because that's the sort of striking velocity you'll be getting, and a game-bullet suitable for .308 or .30-'06 might not expand.

Yup, that is why I want to build this rifle. I need a short range hunting rifle this is different then the rest. I am bored with my 30-06 Rem 760 pump. Don't get me wrong it is a great rifle. My 8mm Mausers are a pain to find good ammo. Then my shoulder numbing .340 Weatherby MkV is way, way, WAY too powerful for deer and ammo is damned expensive. I won't take that bad boy out hunting until I gain some more experience.

 

[Dogfish858]

Sellier & Bellot SP x39 works pretty well. I've shot coyotes and deer with it.