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Old May 18, 2012, 07:44 PM   #1
zulthor
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Review of the Kahntrol bolt-on muzzle brake.

I recently installed and used a Kahntrol muzzlebrake on my Howa 1500, (it has a fairly thin profile barrel).

The quality of this bolt-on muzzle brake is good, the design and execution seems well thought out. It's machined from 6061-T6511 aluminum, and MIL-A-8625 Type III hardcoat anodized. Additionally I'm told the screws are aircraft grade screws. This is not a one size fits all product the way your first suit was, or that pair of shoes you had that always rubbed you the wrong way. To start the sizing on the muzzle brake is custom based on your rifle's barrel. You measure the diameter of your barrel at the crown and an inch and a half in so that they send you a muzzle brake that will fit your barrel's taper properly.

Overall the quality seems very good, and about 100 rounds in has held up perfectly...in another 1000, it'll be interesting to see how it does.

INSTALLATION

The installation would generally be quick and easy. You simply slide the muzzle brake onto your barrel make sure it's lined up properly and screw in the included hex screws to 18inch/lbs (which is roughly hand tight on an allen wrench for most people). Under normal circumstances the muzzle brake is should be easy to remove so if you're going hunting and don't want it on no problem.

When I installed the brake there was a snafu and I ended up torquing it to around 18ft/lbs or 12 times as much as what's recommended. If I realized it was 18inch/lbs I would have just torqued it by hand...since I typically torque things beyond that torque by hand with nothing more than an allen wrench (yes I have, and do tend to bend allen wrenches often...what do you want? As a hobby I bend nails for fun with my hands). Even with all that extra torque the screws did not strip the threading.

EFFECTIVENESS

I'm pretty skeptical about a muzzle brake that can be bolted on to a smooth barrel. I'm always concerned that either the brake isn't going to work or perhaps worse the brake my end up flying down the range after I take a few shots. Previously I tried a different bolt-on muzzle brake and it ended up 15 yards down range. The last thing you want is to see your brake marring your barrel and flying down range.

With the Kahntrol I didn't have that problem, as I previously mentioned the screws were torqued pretty tight so there wasn't really any chance that the brake would come off unless the sizing or design were flawed. As expected the brake stayed on and was rock solid. I have no reason to believe it wouldn't be just as solid if torqued to the correct specifications, because clearly if it needed more torque the manufacturer would just increase the specification

To my pleasant surprise the brake worked great! It dramatically reduced the recoil. Not that .308 is a recoil beast but you'd be surprised how much recoil a Howa 1500 sporter has given the thin barrel profile...it's a lot more than you would think. As a result of the reduced recoil I was able to keep my reticle on target almost as if I was shooting a off the rack .223 AR-15. Even when I fired the rifle from it's bipod and off my shoulder, to see how much recoil it would have, the recoil was minimal and moved the rifle about an inch.

I was concerned that it would be loud, perhaps really loud. I've seen a lot of threads on here of people saying a FSC556 is really loud, I run one on my AR and I don't find it to be loud. From the shooter's perspective I didn't really find this brake much louder than running the rifle without the muzzle brake. Additionally to test the noise I let people shoot the rifle and I stood in different positions. First I stood behind the shooter and the sound was not noticeably louder than running the barrel bare. Second I stood approximately 45 degrees off center and about 6 feet right of the shooter, it wasn't much louder than a normal .308.

It probably was a bit louder but not by much in those positions. While standing behind the shooter I noticed fairly big fireballs/smoke shoot out the sides of the muzzlebrake, it was more impressive looking than shooting the barrel bare, but clearly if you're a wannabe sniper you may not want a muzzle signature like this. Based on the muzzle flash and gasses being blown to the side, I would imagine that it would be louder than a normal barrel to the shooter in the next lane.

I found this to be a very effective muzzle brake. Every shooter, including myself, that tried it was impressed by the reduction in recoil.

POI SHIFT/ACCURACY

When shooting the rifle with this muzzle brake I used 7.62x51 Nato Plastic Training ammo, 7.62x51 Australian F4 surplus ammo, Nato Surplus 7.62x51 ammo, Hornady SST .308 ammo and my favorite factory ammo Federal Gold Medal Match .308. I found there was a slight point of impact shift with all ammo except for the training ammo, my gun was shooting high after putting the muzzle brake on.

I adjusted the zero on my scope to match the point of impact. I found there was no degradation in accuracy. The gun was printing the same size groups that it typically shoots with each type of ammo respectively. I found myself able to get followup shots on target much faster than I was able to before installing this muzzle brake.

That being said I can't say that it increased the actual accuracy of the rifle, only that the rifle maintained the same level of accuracy that it already had prior to the muzzle brake.

VALUE

When determining the value, I like to weigh the effectiveness of the product versus the price of the product. There are some products out there that are cheap and crappy and a low value, while there are other products out there that are really expensive but amazing and a high value. This muzzle brake is a good value...It's not the cheapest brake you can find but the performance outweighs the price.

It's really geared for someone that doesn't have a threaded muzzle on their rifle. If you have a threaded muzzle it doesn't make sense to get this brake.

It's an extremely effective, install it yourself, muzzle brake. At a price tag of $150, it may or may not seem a little pricey for you. For an effective .308 muzzle brake, such as this, the price isn't bad. Additionally when you consider the money you save by not having your muzzle threaded it seems like a reasonable price if you have an unthreaded barrel.
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Old July 21, 2012, 08:45 AM   #2
chucknbach
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Hey, thanks for taking the time to write this up. I'm looking for a bolt on MB for my sons Howa.
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Old July 21, 2012, 01:20 PM   #3
pturner67
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zulthor, did you write this review as well?

http://rightrifle.blogspot.com/2012/...zle-brake.html
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Old July 21, 2012, 07:27 PM   #4
Bud Helms
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pturner67, good lookin out, but in this case I think it is the same person using a different username here than he uses on eBlogger.

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Old July 21, 2012, 10:55 PM   #5
pturner67
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hey Bud, thanks...just curious
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Old July 22, 2012, 09:09 PM   #6
ZOOM2X
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Bud

Why do you think that? Just curious.
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Old July 23, 2012, 05:49 PM   #7
Bud Helms
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Mods have access to registration info not visible to members.

Same guy.
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Old July 24, 2012, 09:43 PM   #8
ZOOM2X
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thanks, Bud

case solved
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Old July 28, 2013, 01:54 PM   #9
Dan Newberry
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Jeremy with Kahntrol Solutions attended one of our long range shoots yesterday...

I told him he could demonstrate the product to any shooters who wanted to try one on their particular rifle.

He measured each muzzle diameter with calipers, and retrieved the correct fitting brake from his gear case.

I don't know how many he sold... but NO ONE took one off their rifle after he installed it and let them try it. Everyone who tried the brake bought one... including yours truly.

It's a good, effective product that allows you to brake a non threaded barrel without any trouble. Kahntrol also manufactures threaded brakes for rifles which have threaded barrels, and they're considerably less than the clamp on brakes.

I know this is an old thread, but since the subject matter is the same, I thought I'd post here.

Dan
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