New Canadian AR Brake |||*|||

Dr.Lector said:
If the jam nut is thick, you might have not enough thread engagement.
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"If" and "might" are big words :)

Obviously if only a couple of threads are available to engage the attachment it would be a no-go. Pesonally I would go be the old 'full head' rule of thumb when determining if I was going to use a jamnut as opposed to other alternatives.

In a previous post the manufacturer himself stated that jamnuts are a viable option.

John
 
More thread engagement is better than less. Rule of thumb is thread engagment must equal the thread dia. So 1/2" or about all that there is on a barrel built to spec. I would also want as much of the threaded portion to be inside the Brake or flash hider as after machining the barrel wall is less than .125" at the muzzle. I know the pressure has dropped when the bullet gets there, but when you watch high speed films the muzzle is whipping around and I want the weight of the brake to be supported as well as possible. I am debating moving up to 5/8" threads on my next barrel.

The closer you can get the Brake to the Crown the less gas will pass the bullet before being diverted to the sides.
 
It's always been my knowledge to have the crown close to the edge of the first chamber opening of the brake for proper function and good accuracy. Once the bullet exits the crown the gas immediately expands out.

Try the free crush washer and if it don't work, get peel washers, thin shims or stick it in the lathe and move the brake shoulder back to properly index. Indexing is not just getting the brake TDC.
 
Good points.

Thank you :)

Miculek recommends indexing slightly left or right according to left or right-handed shooters. (Which is probably why he uses a jamnut!?)

I have tried it TDC and clocked - not sure if there is a difference or not.????

John
 
Clobbersauras said:
. . .

There are many, many things that need to be considered when designing a muzzle brake. As Neit pointed out in his previous posts, muzzle devices are NOT generally transferable between calibers. For obvious reasons like pressure, gas volume and velocity, blah, blah, blah, you can't expect the same performance of a particular muzzle brake design between different calibers. There are specific baffle designs, certain "bore" diameters, certain "port" geometry's and a million other things that have to be considered. All these things can be used to maximize the effectiveness of a muzzle brake to it's specific desired uses. . .
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I know nothing of transitional ballistics or the engineering of muzzle brakes. This thread has certainly got me thinking. Based on the above and other comments on this thread, can anyone show side by sides of the Neit .308 and the .223 muzzle brakes. Is there a difference? I am just curious is all.

I am quite interested in putting one on my AR upper in 7.62 x 39 with a 16" barrel. Would one fit?
 
Farmboy said:
Soooooo anyway.......

We have these in stock for the AR and VZ ;)
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Lol...... I already ordered one from Neit :D

I want to have it mounted and optimized for the 2 day multigun match in Kamloops in April.

Thus all the questions :)

Knowledge is POWER ;)


I have a Miculek on right now but I like to support canadian dealers and manufacturers whenever possible and this a nice looking rig at a good price so....kaching....


John
 
I actually ran this unit for NeitArms last fall. Did some testing with it and ran a CQB match with it on the AR.

The thing is pretty fantastic. I've used a few different brakes over the years and have to say I like this one the best of all I've used.

Virtually zero muzzle climb, and the gasses from the barrel don't go directly sideways either. They vent up and away from the barrel.

The DPMS type that I also have is pretty hard on your neighbors when shooting as it throws a lot of gasses to the side. When prone that means your shooting partner gets a face full of dirt. I actually was knocking peoples baseball caps of their heads with the DPMS / Stag Arms / Miculek type units.

The NeitArms model I ran without any issue for fellow shooters. Easy to hold the V-Bull during rapid fire as well.

Every muzzle brake or birdcage I've ever used came with a crush washer, not a jamb nut. Mind you, my experience with multiple brakes is limited to the 4 different models I've used.


Just my 2 cents. Try it, you'll like it. :)


PS: It's what I'll be running this year for CQB as well.
 
Mine is sitting on my rifle right now waiting for the road to the range to get plowed and the weather to warm up a bit.

It went on easy and was very easy to index. Nice looking unit.

Looking forward to shooting it :)

John
 
Plink said:
The DPMS type that I also have is pretty hard on your neighbors when shooting as it throws a lot of gasses to the side. When prone that means your shooting partner gets a face full of dirt. I actually was knocking peoples baseball caps of their heads with the DPMS / Stag Arms / Miculek type units.
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Hehe... I remember that from SR in '09... If that was the same break you had then.
 
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