Jump to content

New S-308 conversion


Recommended Posts

Finally finished this conversion, starting with a S-308 21 inch barrel, synthetic furniture. The barrel has been fluted and recrowned. The handguard is custom made with venting, and is free-floated. A rail was added for a laser or other device. The rear sight block was built up anteriorly slightly, and a base to attach the hand guard was welded on. The muzzle device began as an 'SVD' (Tigr, actually) from Rusmil.com and the front sight aperture was raised about a quarter inch to align with the rear sight, with front windage adjustment via a set screw. The folding stock is a custom FN-FAL style using a Galil hinge from Sarco with an adjustable cheek rest fashioned from a block of synthetic material. The rifle was first parkerized (manganese phosphate) then finished with Brownells bake-on lacquer in a simple camo pattern. The FCG is a G2 single hook; PG is from CAA. Bipod is a quick-detach Versapod. The scope is an 8x POSP from Eastwave. It wasn't zeroed in due to the use of different ammos. Much of the work was done by my good friend where I hang out, at Ottocomp (Otto Matyska), an extremely talented custom gunsmith here in St. Louis.

 

The rifle was range-tested (by another forum member, Otto's Dog) using different types of ammo including NATO surplus 148gr. and several brands of 168gr. boat tail. With iron sights at 50 yds. a four shot group of about a half inch was achieved. With the scope, at 100 yards, a three shot group of about an inch was shot (the leftmost round was felt to be a flyer with range conditions being windy.) The rifle definitely likes the surplus ammo much better than the heavier expensive stuff. A stock S-308 was also tested side by side with the converted rifle and the accuracy is definitely significantly improved; recoil was reported as soft.

 

IMG_8915_resize.jpg IMG_8916_resize.jpg

 

IMG_8917_resize.jpg IMG_8918_resize.jpg

 

IMG_8919.jpg IMG_8920.jpg IMG_8921.jpg

 

IMG_8922.jpg IMG_8923.jpg IMG_8924.jpg

Link to post
Share on other sites
Very nice, I like custom stuff like that.

 

I'm assuming the forend is free floated and attaches only to the receiver, and you said it has been re-crowned. Is there anything else done to improve accuracy?

Those two measures were sufficient to improve the accuracy considerably, otherwise I may down the road consider swapping out the FCG for an adjustable one. The fluting helps dissipate heat more quickly and should also be contributing to accuracy.

Link to post
Share on other sites
Very nice, I like custom stuff like that.

 

I'm assuming the forend is free floated and attaches only to the receiver, and you said it has been re-crowned. Is there anything else done to improve accuracy?

Those two measures were sufficient to improve the accuracy considerably, otherwise I may down the road consider swapping out the FCG for an adjustable one. The fluting helps dissipate heat more quickly and should also be contributing to accuracy.

 

might get a little more accuracy if you ditch the muzzle brake and just go with a target crown

Link to post
Share on other sites
might get a little more accuracy if you ditch the muzzle brake and just go with a target crown

 

Possibly, but the brake is integral with the FSB and it looks great on that rifle. :smoke:

Link to post
Share on other sites
might get a little more accuracy if you ditch the muzzle brake and just go with a target crown

Actually, a properly installed muzzle device will not degrade accuracy at all, and because a good muzzle brake reduces muzzle jump when shooting and reduces felt recoil it often increases the shooter's performance by making them less likely to flinch or mess their shot up by subconsciously trying to counteract the recoil. It doesn't really make the gun more accurate but people often shoot better with a good muzzle brake.

Link to post
Share on other sites
  • 2 weeks later...
Wow... good show.

 

That front aperture looks familiar, is it off a Mosin?

No, it's one of the SVD flash hiders from Oleg's website, but it's been modded a little.

 

Hello,

 

i see you are from Missouri .

 

i have a 21 that i would like to convert like yours only to a 18 inch barrel can you help or do the work

let me know im in Carroll county .

 

Thanks TS2

Link to post
Share on other sites
Wow... good show.

 

That front aperture looks familiar, is it off a Mosin?

No, it's one of the SVD flash hiders from Oleg's website, but it's been modded a little.

 

Hello,

 

i see you are from Missouri .

 

i have a 21 that i would like to convert like yours only to a 18 inch barrel can you help or do the work

let me know im in Carroll county .

 

Thanks TS2

PM sent.

Link to post
Share on other sites
  • 2 weeks later...

I've had a couple inquiries as to how the hand guard is attached to the rifle. An adapter plate was welded to the rear sight block and the HG is screwed onto it, free floating it. A plug was added to the front bottom of the receiver just to block the hole that would otherwise be there. A few pix:

 

IMG_8980_resize.jpg IMG_8978_resize.jpg IMG_8979_resize.jpg

Link to post
Share on other sites
  • 9 months later...

Alright I'm sold on the idea of free-floating a handguard, but even after reading this thing I can't seem to figure out how it's done. Any chance you can doctor up some pics and tell me how that works? Maybe I'll even (oh God I'm going to catch flak for this) think of converting a 7.62x39 (BUT I'LL STILL KEEP ONE IN STOCK!) to see if the mythical "Accurate" AK-47 is actually just a creature cryptozoologist haven't found yet.

Link to post
Share on other sites
  • 2 months later...
Where can one get a barrel fluted like that? Can most gun shops do it? Any idea how much weight it'll knock off and can I do it to a .223?

A custom gun shop can do it with the right equipment. Fluting will remove about a pound of metal off the barrel.

Link to post
Share on other sites
Hmm... I don't suppose your gunsmith might be interested in selling a kit, consisting of the handguard, adapter, and receiver plug? Then I could get a local smith to install it. Otherwise, what does he charge to do just the free float conversion?

No kits--just a one off conversion. You'd have to ask the smith about the cost for free floating. It's all custom machined/welded and ain't gonna be cheap.

Link to post
Share on other sites
  • 3 years later...
  • 1 year later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Chatbox

    Load More
    You don't have permission to chat.
×
×
  • Create New...