Gunsmithing Muzzle Brakes diectional vents

[goober]

I am trying to find out if some one has done tests on what is the best configuration for the vents on a muzzle brake .

What I mean by that some vents are at 90deg some are angled back to the shooter -some have big holes as is the surefire some are small round holes .Here is a link with the many types .Most interested to hear some commentary about this

http://www.google.co.nz/search?q=muzzle+...ved=0CBQQ_AUoAQ

 

[Massoud]

Re: Muzzle Brakes diectional vents

DOD has done extensive testing on muzzle brakes from way back. I'll give you a summary of what I have discovered.
1. The greater the angle toward the shooter, the greater the overpressure and efficiency

2. Any more than 2 (3 at the most) baffles means you didn't design your brake properly

3. A "pepperpot" brake (many round holes) can be used to limit overpressure at the expense of efficiency

4. In general, the tank style brake (1-2 perpendicular baffles, i.e. Badger FTE style) is used on big guns due a good combination of efficiency and limiting overpressure to the crew.

Good day,
Justin

 

[goober]

Re: Muzzle Brakes diectional vents

Thanks Justin , I am in the process of getting a brake for my 284 shehane and there is such a lolly shop full of different brakes .I am surprised there isn't a bit more comment about this as a brake is greatly affected by its design and the designs are many

 

[Massoud]

Re: Muzzle Brakes diectional vents

I think part of the reason you see so many designs is that with the relatively low recoil of a rifle, many designs of brakes will give recoil reduction. Unless two brakes were compared side by side, I think it would be difficult for the average shooter to tell the difference between a 30% efficient brake and one with 40% or higher efficiency. The design just isn't as critical as when you are launching a 155mm artillery shell. That said, there is one super efficient design that we are going to start looking at later this year and maybe do some testing.
Justin

 

[carbinero]

Re: Muzzle Brakes diectional vents

Check out ar15performance.com. harrison has done a lot of testing and production, along with a cook chart to show subjective results in recoil and muzzle lift, and perceived loudness.

 

[goober]

Re: Muzzle Brakes diectional vents

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: carbinero</div><div class="ubbcode-body">Check out ar15performance.com. harrison has done a lot of testing and production, along with a cook chart to show subjective results in recoil and muzzle lift, and perceived loudness. </div></div>

Can you post a link to that in the forum or where ever it is as I couldnt find it .cheers

 

[Massoud]

Re: Muzzle Brakes diectional vents

http://www.ar15performance.com/muzzle_devices

scroll down a bit for the chart

I wish they would have posted their method and more detailed info but it's interesting nonetheless.

Justin