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Old April 12, 2011, 08:04 PM   #1
Daekar
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Top 3 SKS Accuracy Mods

My Dad has taken a fancy to SKS rifles, and looks to me to help him with the assorted goodies and modifications that make shooting fun. Regarding accuracy, I'm trying to figure out the most effective modifications to make to the rifle to shrink group size besides using expensive brass-cased ammo. So far I've chosen:
1) Recrown the barrel
2) Bed the stock
3) Techsight aperture sight.

Any other suggestions? He hasn't bought one yet, so no telling what variant it will be. Will steer him towards one without a grenade launcher, but it depends on what the gun show vendors have.

Other mods under consideration:
1) Kivaari trigger job
2) Spring-loaded firing pin
3) Bayonet and grenade launcher removal
4) bolt polishing

Edit: Intended function of this rifle is for deer and social uses. Likely ammo will be S&B Soft Points for both applications.
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Old April 12, 2011, 09:19 PM   #2
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I would only recrown if it was out of spec somehow.

The top three easy things to do ( and I did them in this order) was to remove the bayonett, do a trigger job, and epoxy bed the receiver. I used Accraglass. I also put on an extender over the butt plate. Not really an accuracy mod, but it does let me shoot better. The stock sights do fine for me once they are dialed in.
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Old April 12, 2011, 10:50 PM   #3
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Have you also tried the other specialists at "SKSboards"?

Will the most productive mod. depend on whether it is Russian or Chinese etc?
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Old April 12, 2011, 11:53 PM   #4
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1. Leave it alone and shoot it.

2. Leave it alone and shoot it.

3. Leave it alone and shoot it.
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Old April 13, 2011, 06:40 AM   #5
grumpa72
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With those mods, you would think that he is buying a Remington 700 for extreme range shooting.

Tell your dad it's an SKS for crying out loud. Bed the stock?

Buy a case of milsurp, take it out, and shoot it!
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Old April 13, 2011, 07:50 AM   #6
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Oh ye of little faith. Yes, bed the receiver.
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Old April 13, 2011, 09:43 AM   #7
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I've got one I modified that shoots 1 MOA all day with cheap ammo... it started out as an ( am I dating myself here ??? ) ...

... an early Norinco SKS... one of those $89.00 ones... I proceaded to make it "even more evil", back in the day, adding a flash hider, folding stock, removable magazines, scope & mount, etc... but a reciently purchased old Mauser inspired me to rebuild my old SKS ( which I really didn't care for in the form it had taken... thanks to the Clintons ) into my "ultimate $200.00 SKS" the bayonette & lug were removed, along with the flash hider & 2" of barrel to smooth out the original stepped barrel look of the front end of the gun, the original front sight was relocated to where the bayonette lug was originally on the barrel, & the new barrel end ( 1/2" in front of the sight ), was target crowned ( the gun started life as a long barrel early Chinese SKS, which has the chrome lined barrel ), a $35.00 ATI Black plastic Monte Carlo stock was fitted, replacing what was originally the original "orange wood" stock, & the cheap Ram Line Folder, which I always hated, a thinner target front sight post was fitted to the original but relocated front sight, & a Tech Sights rear sight was added 8" back from the original rear sight ( which was also removed ), a custom keeper was added to hold the original rear sight spring in place, protecting the gas piston extension, & the rear sight block was ground down in the front center to increase the available sight picture, the attached cleaning rod removed, & the keepers on the front sight are also removed, as was the front welded on the side sling mount to smooth the look, ( a traditional sling stud has been added to the front of the stock ), a 20 round fixed box magazine was swapped in place of the removable magazines, that I found a pain to change out, & found the rifle difficult to shoot in several positions with those long mags... the 20 round fixed box was much shorter than a 20 round removable mags, but I found I could load with stripper clips into the stock 10 round fixed box as fast as anything, & with better reliability, so the original 10 round fixed box went back on...

the result is a rifle that is still "black", but has much more in common with the looks of a composite stocked hunting rifle, but holds 10 rounds, easily loaded through stripper clips, & much improved accuracy, & sights... right now, I have way less than $200.00 total into the gun, & it'll shoot 2" - 200 yard groups all day, with cheap tin boxed ammo, with no wandering of point of impact as the barrel heats up
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Old April 13, 2011, 10:28 AM   #8
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SKS accuracy

I have mine fully "modded" out.
It is capable of minute of Buick Roadmaster at 50 yards.

Jeff
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Old April 13, 2011, 10:30 AM   #9
jsmaye
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Quote:
I've got one I modified that shoots 1 MOA all day with cheap ammo...
What was its accuracy before? It's surprising that you made a (for instance) 3 moa SKS into a 1 moa SKS by just removing the bayonet, changing the stock, and moving the sights around.
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Old April 13, 2011, 10:40 AM   #10
Magnum Wheel Man
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Quote:
(for instance) 3 moa SKS into a 1 moa SKS by just removing the bayonet, changing the stock, and moving the sights around.
mine was typical... the more the barrel warmed up, the more mine moved up & to the right...often as much as 3" ( likely a clearance issue on the stock or ??? )

so with a longer sight radius, it's easier for me to shoot more accurately... it's now actually a heavy barrel, with the thinner front part of the barrel removed up to the 1st "step" in the barrel... the crown didn't look horrible, but it now looks as clean as any target rifle... the new stock ( monte carlo style ) is easier for me to shoot more accurately, & it was clearance & glass bedded so it's fit is much better than either the crappy folder or the original wood stock... any extra "stuff" ( like folder bayonettes ) on the end of the barrel can effect the accuracy, especially over the thermal range of "cold" to "hot"
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Old April 14, 2011, 08:00 AM   #11
jsmaye
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That's what I was getting at - you didn't make the rifle more accurate as much as you made it easier to shoot consistently. Though many would argue that those are the same things.
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Old April 14, 2011, 08:24 AM   #12
Magnum Wheel Man
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Well...

the point of impact doesn't shift up & to the right anymore as the barrel heats up... which the modifications corrected, & didn't have anything to do with me... ( it may still do it one direction or another as the barrel heats up, but now is within 1 MOA, & before the modifications I could see a 3 MOA shift in 2 - 20 round magazines worth of heat in the barrel...
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Old April 15, 2011, 08:00 PM   #13
DoctorXring
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.

I think any story about an SKS, either standard or modified, being an all-day-long 1 MOA gun apart from handloading is highly suspect. Even with handloading I would consider it a miracle of the first order.

Unless 1 MOA translates to Minute of Apple at 100 yards.

But 2.54 centimeters at 100 yards ?? 5.08 centimeters at 200 yards?
Consistently ??

I have a thick packet of folding money to lay on a table if someone
wants to go even odds that they can do it.

.
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Old April 15, 2011, 08:08 PM   #14
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SKS for Accuracy
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Old April 16, 2011, 11:07 AM   #15
Magnum Wheel Man
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Ok... best to define "all day" here...

I've never shot the gun till the stock caught fire ( as seen on U-Tube )

but the gun will hold 2" ( or just barely over ) with 40 consecutive rounds fired ( enough to see any shift in point of impact from heat ) at 200 yards from the bench ( I've done this 3 or 4 times already ) in reality I've only shot 40 shot groups at 200 yards 5-6 times, so it does consistantly perform

I will say, as I get older, shooting at distance without a scope has been getting tougher... & of course the day I had to prove it, ( as "my" luck would have it ) I'd get a flyer out to 5" or so but... on calm days when I'm shooting well, 2" holes in the paper at 200 yards from my bench have not been a problem
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Old April 16, 2011, 04:33 PM   #16
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Quote:
the new stock ( monte carlo style ) is easier for me to shoot more accurately, & it was clearance & glass bedded so it's fit is much better than either the crappy folder or the original wood stock.
Not sure you can call it a SKS anymore! Sounds more like a Ruger or Remington.

Jim
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Old April 24, 2011, 06:51 PM   #17
BigBill
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My chinese norinco paratrooper sks in its orginal condition w/16" barrel using norinco ammo will shoot 1 1/2'' groups @ 100yds. if we do our part. My orginal chinese norinco scoped 20'' barrel was on the way to 1/2'' to 5/8'' groups using the norinco ammo when the POS scopemount came loose as i was on my last scope adjustment while dialing it in. Now i installed a mosin nagant style scopemount that i can hang my body on its rock solid. Soon we'll get out and sight it in again.

I thought the sniper sks's or an accurate sks was a joke at first. We were too busy blasting away 30rd mags at soda cans. When i got my paratropper sks we were waiting for a cease fire to put our targets out and i got ansy. I loadedup the para and aimed at small rocks that i could see on the 100yd berm with the iron sights. The very first shot i pinged the rock with amaisement. After 5 more shots and the rock dancing around i was shocked the sks could do this. I never got serious with my first 20'' barreled sks either. We were peppering targets at 100yds and were happy but we never got serious about accuracy and never actually benchrested it until we scoped it.

With the trigger sear we just put moly on it and it smoothed out the trigger.

The biggest problem i have read about with the accuracy being bad is the bore diameter and the bullet size not matching. The bores can run between .308" to .312" and a .308" bullet in the larger bore will pepper a target. You need to mic the bore and the bullets your shooting to see if there the correct size for your sks barrel. You should at least get it down to 2'' to 3'' groups at 100yds. minimum, if not tighter.

Last edited by BigBill; April 24, 2011 at 07:05 PM.
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Old April 24, 2011, 06:56 PM   #18
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I'm willing to bet my orginal 20'' barreled scoped sks (untouched chinese norinco) will shoot better than 1'' MOA using the orginal surplus chinese norinco yellow box FMJ ammo. I/we don't need handloads.

Like i posted before its the diameter of the bullets/ammo were using as to wether its accurate or not. I'm using the orginal norinco ammo thats manufactured for the chinese sks.

I won't post any group sizes unless I shoot it and my son will shoot the same size group, this way i know its no fluke if he backs it up when he shoots it.

I've hunted with a 30-06 for most of my life and in '94 i purchased a remington 700 in 338win mag. While benchresting it with winchester super X 225gr / 338ammo i put two bullets thru the same hole at 100yds taking out the X ring in the center of the target. So i'm not that bad of a shot with magnum rifles. Not to say i have my good and bad days at being 60yo now today but i still can shoot but i don't walk so good.

During your shots you need to control your breathing too. The rifle needs to be completely still when you shoot it. This can be why some get flyers.

Last edited by BigBill; April 24, 2011 at 07:03 PM.
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Old April 24, 2011, 07:05 PM   #19
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It's an SKS, I would not mod it. They are not as cheap as they once were and if you mess with it any it will only go down in value. You could spend $200 for one, $200 to work on it and still have a $200 (or less) rifle that doesn't shoot that great.

A Yugo Mauser may be a better project gun if you want to work on something to try to make it into a shooter.
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Old April 24, 2011, 07:43 PM   #20
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Quote:
right now, I have way less than $200.00 total into the gun, & it'll shoot 2" - 200 yard groups all day, with cheap tin boxed ammo,
This is truly astounding accuracy for an SKS, and actually an admirable goal for any of us with a scoped bolt action with tailored hand loads.

I now feel totally inadequate as a shooter, and think maybe I'm gonna sell my guns and take up golf. jd
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Old April 25, 2011, 10:56 PM   #21
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Best thing is to buy one of those little rubber/plastic apeture sight improvers with the tiny little suction cup that sticks on your shooting glasses and makes the front and rear sight stay in focus ...... this little device alone will cut most 'open sight' groups by half or more. the older you are the more effective it is
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Old April 26, 2011, 09:27 PM   #22
Daekar
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We're heading to the gunshow this weekend, so hopefully we'll have a good-shooting mod candidate soon!

I figured I should do a bit of fiddling with my own SKS (Yugo with little collectors value) so I cut off the bayonet and grenade sight. Made a definite difference in percieved weight! Still appears to shoot about the same. I had forgotten how horrible the trigger on mine is! I think I'm going to get the trigger fixed on mine too, i bet my groups shrink by half.
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Old April 28, 2011, 12:32 AM   #23
mp25ds4
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you shouldn't have cut off the bayonet, you could've just removed it. As well as the grenade launcher.

tech sights, trigger job, and good ammo will do wonders for accuracy
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Old April 28, 2011, 10:05 PM   #24
Daekar
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Yeah I could've left the lug on, but I've seen pictures of that and I hate the look. The grenade sight wasn't going to be used for anything, so it went too. The actual launcher is still there, and will be until I pick up a recrowning tool. Then, off it comes! It was really weird using a dremel on a gun, a very surreal experience. I'm used to babying them rather than cutting off pieces. I won't do that to my Mauser, or my M44, even if the bayonet is just extra weight. I never really intended for them to be "practical" guns so that stuff doesn't matter. If I was going to sportize them that would be different... but I would rather just get a T/C for that kind of thing anyway.
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Old April 30, 2011, 01:14 AM   #25
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The trigger pull on mine is fairly even, but just a bit tight, if that is the proper terminology.

From what I've read about SKS sears and seen on the Surplusrifle SKS breakdown photos, am wondering whether anybody in the Memphis area really knows how to apply moly, and is skilled, but charges very little?
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