Bull Barrel for Browning BAR in 300 Win Mag?

Kanaima

Kanaima

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I've done some looking on line so the first thing I need to say is: Please don't flame me or start ranting about being able to hit an animal with the first shot so why do you need...or any of the other off topic comments that seem prevelant with this question! I have a vision for this rifle and I'd like to see if it's doable.

I'm looking to pick up a Browning BAR in 300 Win Mag as a long range precision rifle. It appears about 20% of these rifles are not "accurate". Apparently Browning considers 5" groups at 100 yds as acceptable. There is also some discussion about the barrels overheating when rapid shooting. So...are aftermarket precision barrels available for the 300 win mag? I recall seeing pictures of a military unit using BARS as long range tactical rifles. I believe they had bull barrels and hi capacity magazines. I want one. Any comments?
 
Your vision is rather weird to say the least...

Not really a doable project. It won't be possible to install a bull barrel and use the gas porting that operates the action. A slightly heavier barrel with a different profile could be custom fitted. There are no aftermarket barrel assemblies that I am aware of.

I think it is a ridiculous concept for a long range precision rifle...
 
Lordy first post and here we go. I guess I'll have to find the picture complete with caption of the military unit using BARs at a competition. I can't remember if they were bull barrels or just after market but I'm sure they were custom as per the caption. Why is it that nothing brings out the daggers faster than firearms or politics. PLEASE if you don't have something positive to add to this thread, just move along!!!! Is that too much to ask???

EDIT: Didn't find the picture I wanted...yet. But I did find this and I HAPPEN TO LIKE IT! I think it's cool and obviously it is doable.

"ArmsTech doesn't exactly maintain a public profile, and is very tight-lipped, even their website ceased to exist after a while. First time I heard of them was when I was "invited" to KFOR in Bosnia, and saw some of our Army folks carrying the heavily modified Browning BARs around, working over the snipers who had previously been picking folks off from the apartment high-rises in Sarajevo. I managed to talk to them for a little while before I had to break off and resume my duties of looking for illicit mass graves - a job that still brings me nightmares from time to time.

Turns out the Army bought a handful of these .300 Win Mag bad boys from ArmsTech, and the contract ended there. They have new heavy stainless steel barrels, McMillan stocks, and are configured to use the original M1918 BAR 20-round magazines. They're called Interdiction Rifles, and have a greater effective range than the 7.62mm NATO round, or the 7.62x54R Moisin-Nagant round of the SVD Dragunov used by the enemy snipers. So you have an accurate, long-range rifle, capable of quick follow-on shots, perfect for multiple counter-sniper engagements. Here's a picture of the issued gun:

interdiction.jpg


Here are the specs:

Arms Tech 0.300 Winchester Magnum Super Match Interdiction Rifle Development

The Arms Tech Super Match Interdiction rifle was developed as a private venture by Arms Tech. It was to fill a need for a precision rifle as accurate as a bolt-action rifle, able to reach targets beyond the range of standard 7.62 × 51mm weapons, and providing a quick follow-up shot capability, for tactical situations requiring the engagement of multiple targets.

Description

The Super Match Interdiction rifle is based on an extensively modified FN HERSTAL BAR semi-automatic sporting rifle. Stainless steel barrels are by either Douglas or Schneider, are fully free floated for accuracy and are blackened by a chrome sulphide process. Barrels are cryogenically treated to enhance accuracy and extend service life. The barrels are threaded to accept a sound suppressor. In the absence of a suppressor, a cap is screwed onto the muzzle to prevent damage.
Extraction has been improved for strength and reliability. For cold weather operations, the charging handle has been extended. Locking lug recesses, integral to the barrel in standard rifles, have been replaced by a proprietary carbon steel shank to improve reliability and strength. The bolt is lapped for smooth operation. The magazine release has been changed to one similar to a Kalashnikov type. Stocks are by McMillan (Harris Gun Works) and each action is custom-bedded using a powdered metal-filled epoxy compound.
The rifle incorporates an Arms Tech proprietary telescope mounting system that allows optics to be removed and replaced without loss of zero. The Super Match Rifle is warranted by the manufacturer to shoot with sub-minute of angle accuracy over its effective range.


Specifications

Cartridge: 0.300 Winchester Magnum
Operation: gas, semi-automatic
Locking: rotating bolt
Feed: 3- or 10-round detachable box magazine
Weight: empty, 6.3kg
Length: 1.193m
Barrel: 660mm
Rifling: 6 grooves, rh, 1 turn in 304mm
Sights: optical, to customer specifications
Muzzle velocity: 971m/s
Rate of fire: 3-4rds/min
Effective range: 1,000m


Manufacturer: Arms Tech Limited
5133 North Central, Phoenix, Arizona.
Status: In production.
Service: Unspecified special operations forces. "

And this article on Janes sight: Browning Bar Interdiction Rifle

AND FINALLY from Arms Tech's own site, apparently still available: SMIR Super Match Interdiction Rifle
clip_image002smir.jpg


So sorry Guntech, very doable and not ridiculous...
 
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I'll stick by my 'not really a doable'...

try hanging an inch and a quarter bull barrel on a BAR...

What you have shown are not 'bull' barrels but slightly heavier barrels with a different profile... and the cost of those rifles make it prohibitive except for the richest of the wannabee snipers ...
 
Do me a favour guntech and walk away from this thread. You're exactly the type of person I don't want to hear from. As mentioned a couple of times before, I want to hear from the "glass is half full" people not you.
 
I think any gunsmith worth his salt could build this project. Just send a cheque for $15,000 along with your donor rifle and barrel to get the project started and do the R&D work to make it fuction properly. When that money runs out, send more. Listen to what Guntech has to say, I have never seen him give bad advice.
 
From the ArmsTech website:
This is the first State of the Art .300WM sniper rifle. An alternative to bolt action boredom, it has impressive barrel life and 0.5 MOA or better accuracy. Tactically it allows rapid multiple target engagement and even may develop a doctrine of the “Sniper Double Tap”.
Click to expand...


Sniper Double Tap....:stirthepot2:

The concerning part:
Locking lug recesses, integral to the barrel in standard rifles, have been replaced by a proprietary carbon steel shank to improve reliability and strength.
Click to expand...

Ohh kay.... So no more bolt lock up in the barrel... I suppose it makes fitting the barrel easier, but the receiver was not designed for that load... so now you have all the energy pushing back on the bolt being transferred to a "carbon steel shank"

Good plan.
 
Why do you guys insist on raining on the OPs parade with all your logic, and experience, and engineering degrees??

Kanaima, for sure it's a cool idea but without the serious modification and custom parts that were required for the ArmsTech version it may not be feasible for even an experienced gunsmith (like guntech) to do. If you do decide to pursue it good luck, and hopefully you'll post your results (good or bad).
 
Kanaima,

Guntech is one of the top precision gun builders in the country and a shooter with an impressive history. You can tell him to walk away, but he knows what he is talking about. The silent majority of true precision gunsmiths and top shooters that never post here are just rolling their eyes. Keep shopping until you find the answer you want to hear.
 
It's a viable project, the only limit being how much you're willing to spend to get there, and therein lies the rub.
 
Bar .308

Can I tell u about my BAR? Don't want to hijack this thread. Anyways!...:redface:
My Safari BAR with BOSS system in 308 will shoot 1/2" or better @ 100 Yards.
On sight in @ 100 yards shot under a 1/2" 3 shots . I was really surprised. If i set it on the bench and really take my time, will produce some really tight groups with the factory 200gr Norma ammo. The groups open up a little after about the 10th shot, barrel heats up and the groups open a little. The barrel on my Bar is about 20" in length without the boss on. It's not a Bull barrel by all means but really is short and has some girth to it as well . Love it as it shoots great and that action is as smooth as silk. If i was going to build a long range rig it would be in a bolt, but thats just me. If you can afford it and want to try it then best of luck.
Take care!
Tikka
 
I bought a Belgium BAR in .338 win mag for a moose gun. Dreams of quick follow up shots dancing through my head. I eventually did get it to an honest MOA gun. But either because of me or the gun I've never fought so much with an inanimate object. I shoot FClass and couldn't imagine bringing that frustration to the line.

But good on you for spec'ing it out! If you're looking to invest in a a precision semi-auto rig, have you looked at match grade Garand / M1A / M14 or an AR15 or AR10 in a wildcat cartridge (ex. .300 RSAUM)?
 
It would be an original build, thats for sure, but will probably end up taking alot of time and money. I agree with GSod, it would be easier to simply use an existing platform such as those available from Springfield or even an FNH FNAR HB, unfortunatly I believe you are limited to the 308 win. in these platforms.

A side note, FN actually made a rifle similar to their FNAR (pictured below) called the FNAR Match with a Mcmillan stock but no longer lists it on their website.
full-length.jpg
 
dan belisle said:
Well, you know who builds it, phone them and ask how much? Then contact a Canadian importer and have them bring it in. The 20 round BAR magazine will be a no go however. - dan
Click to expand...

Most logical post yet.


When you find out the price let me know, I for one would be interested, since I would hope its cheaper than a Walther wa2000 or Voere in 300wm. Mind you, thats only if you believe an autoloader in 300wm can be made to be accurate....
 
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