Brakes on a hunting gun

JE Custom? I was looking at your website.. Very interesting reading. Can you explain how you "tune" a brake to a specific round? Is it based on gas flow? Bullet diameter and velocity? Do you actually "flow" the brake and have to machine it a certain way? Thanks,

Mike

I use the T-3 brake on my 300 RUM. I have shot one without and i have to say that I would have a hard time to develop a load with that kind of recoil. I just carry a pair of foam earplugs when I hunt. Most of my shots are taken from 600 to 800 yards away so I have time to set up and get my earplugs in.

For what it is worth, put a suppressor on it and be done with it. Im a competitive rifle shooter, have been all my life and at 30 I already have tinnitus. I ALWAYS wear hearing protection, and if you look at the data, even doubling muffs and plugs you cannot get a large caliber rifle to be hearing safe. Almost all the competitions I shoot in do not allow brakes to be used, but I built my first hunting rifle (7 SAUM) with a brake two years ago and promptly decided a suppressor was the way to go. Now that I've been shooting with a suppressor on several rifles I wonder why it took me so long to buy a suppressor I almost think they should be mandatory on all rifles. The thunder beast arms ultra 7 that I have only weighs 9.5 oz, is magnum and even ultra magnum rated and does a great job reducing both recoil and noise. Suppressors are not hard to get and will last a lifetime.

It's just my .02$ but there it is.

I have a JP LRP 07 w a JP brake which is worse than AC/DC and OZZY squared... having said that I run a Vias break on my 375 H&H which is highly efficient but not bad....

Michael Cantor said:

JE Custom? I was looking at your website.. Very interesting reading. Can you explain how you "tune" a brake to a specific round? Is it based on gas flow? Bullet diameter and velocity? Do you actually "flow" the brake and have to machine it a certain way? Thanks,

Mike

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Tuning a brake requires many factors of your load, cartridge, case volume, bullet weight, velocity, type of powder, (Single base or double base) powder charge, and barrel length. Armed with this information,we know how much gas volume is generated and the pressure at the brake.

Using our formula( Which is a secret for patent purposes) we can determine the size of the ports and the number for machining. the brakes are literally one of a kind because of this machined difference.

The formula was developed using a recoil device that precisely measured recoil of each change we made to the brake to determine the best performance.

During testing, we found that a properly Tuned brake could produce
from 8% to as much as 20% more recoil reduction than a standard mass produced brake, depending on the cartridge and rifle combination.

The point to all of this testing was to prove that a muzzle brake is more than a piece of steel with some holes or ports cut in it and a hole through it slightly larger than the bullet. Considering the dynamics of what a muzzle brake has to deal with, and the many different cartridges and loads, they can be very complicated in there design if it is to reach the highest performance levels.

For every single cartridge and load there are differences needed to get the most from the brake. With mass produced brakes , tuning is impossible for this reason. Based on there design, some brakes perform better on one rifle and cartridge than another because if the difference between then. (A certain brake may produce more or less recoil reduction in 7mm mag, than in 300 win mag because of these differences).

J E CUSTOM

gpo1956 said:

I've got to say that Gunwerks makes a hell of a brake. I shot a 9 1/2 pound (scoped weight) 375 H&H today and was shocked at how tame it was. It was sythetic stocked, carbon barreled custom by Gunwerks. Amaziing how easy top shoot it was. I'm a believer.

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Felt recoil on the large medium and big bores is significantly different than our high speed flat shooting small bores.

My custom 375 Ruger Model 70 only weighs about 8lbs scoped and has no brake and it's a blast to shoot even with 270-300gr bullets.

Pacecount said:

I have a JP LRP 07 w a JP brake which is worse than AC/DC and OZZY squared... having said that I run a Vias break on my 375 H&H which is highly efficient but not bad....

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The JP artillery brake is absolutely brutal on the shooter and anyone around him/her.

Edward Pagliassotti said:

I am a newbie to this forum. I have been looking into magna porting my 7mm rem and 30-06. They (MagnaPort) are still in business. Question: how is a brake different than MPing? Weight?

Yes use hearing protection. Twenty three years in the military helped me loss hearing and develop tininitis.

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Significantly different and magnaporting produces an absolutely earsplitting sound along with cutting down considerably on your velocity.

A good brake also significantly reduces recoil considerably more and a good side discharge brake will not blind you in low light with muzzle flash like porting does.

OK, you win the contest. All I'll say is, I was a lot more concerned about the 9 1/2 pound 375 than I was the 12 1/2 pound Jarret 416 Rem. It was not even close. I don't care what anybody says, a synthetic stocked carbon wrapped barreled 375 H&H should have more felt recoil than that thing did.

Dang! What did I miss?

gpo1956 said:

OK, you win the contest. All I'll say is, I was a lot more concerned about the 9 1/2 pound 375 than I was the 12 1/2 pound Jarret 416 Rem. It was not even close. I don't care what anybody says, a synthetic stocked carbon wrapped barreled 375 H&H should have more felt recoil than that thing did.

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I didn't realize there was a contest.

I am just pointing out the reality that with the larger bores felt recoil is considerably different than with something like a .300 Rum or smaller.

The smaller magnums seem to have a much sharper/quicker recoil whereas the larger bores more of a slow and steady push. At least that's what I've learned shooting everything from the .264 up through .458's.

Sorry, but the 378 Weatherby, 416 Rem, 416 Ruger, 375 H&H and 458 Win are much more than a slow steady push.

I took the brake off my .375-.416 Rem for my friend to feel what a 300 grain bullet taking off at 3,000 feet per second is like. He emotionally exclaimed, "That's abusive!"

By the way the powder charge was 100 grains.

Rich Coyle said:

I took the brake off my .375-.416 Rem for my friend to feel what a 300 grain bullet taking off at 3,000 feet per second is like. He emotionally exclaimed, "That's abusive!"

By the way the powder charge was 100 grains.

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Once is more than enough!