338 brake on a 30 cal rifle
- Thread starter JasonT
- Start date
The difference will be small percentages and not even felt by shooter.
As far as accuracy, there will be no effect with a larger brake. My rifles with the larger brakes are very accurate. No ill effect from a .338 brake on a 6.5 or .30. I have a .30 brake on my other 6.5 Creedmoor and another on a .243 and 6mm Creedmoor and all are very accurate. 5 shots from my newest 6mm Creedmoor with a .30 brake on it.
As far as accuracy, there will be no effect with a larger brake. My rifles with the larger brakes are very accurate. No ill effect from a .338 brake on a 6.5 or .30. I have a .30 brake on my other 6.5 Creedmoor and another on a .243 and 6mm Creedmoor and all are very accurate. 5 shots from my newest 6mm Creedmoor with a .30 brake on it.
A good gun and brake will shoot under 1/2 inch at 200. I have had some shoot under 3/4 at 400. BR guys cant afford to let anything on the table. The test that was done even showed a PPC lost accuracy. Don't know about your suppressed gun but a brake works by gases hitting a wall and redirecting them. The more walled baffles the better they work. Look at a clamshell and see them baffles. The tests were done, look them up. Matt
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Matt I don't shoot benchrest. If you think you need a perfect brake that is exactly .020" over bore then go for it. I know that it isn't needed for my shooting and staying 1/2 MOA to 1000 yards and past. Same with using my .338 can on my smaller calibers. Still very accurate.
I almost didn't put that pic up because I knew I would get these comments but figured what the hell.
A can and and a brake are not the same. The internals and workings are totally different. I have already put 10 shots in 1/4 MOA at 1000 on paper and officially measured. Many times close to that. We shoot 10 shot groups because 5 is a lot easier to get lucky. I would like to see your groups on paper and officially measured. Matt
Again, I don't shoot benchrest. No one is officially scoring my groups. I shoot PRS matches and anything 1/2 moa or better is good with me. Not going to make a big pissing match out of a brake. You want your brakes perfect then get them measured to perfection per the test you read. I am good with the way my rifles shoot.
A flash suppresser and a muzzle brake are two different animals. They work entirely different and serve a different purpose. An M14 and a custom bench gun are also two different animals. Matt
That is what I was trying to get across to you above when you kept speaking of benchrest and talking down my rifle and group as it was due to the brake. My rifle isn't a short barreled, full taper contour barrel, no mag action, large flat bottomed super stiff bedded stock, 60x scope and shooting off a large micrometer front rest with bags holding it rock solid in place. It's not shooting ammo that has had the bullet weight and length sorted, brass weight and internal capacity sorted and super anally prepped, weighed primers etc that BR ammo is. It was shooting factory ammo, actually shots 56-60 out of a new 28" med palma contour barrel, magazine fed action in an aluminum mini chassis stock and a 4.5-27x scope on 20x shot from prone off a bipod with a hand held poly pellet filled sock in the rear but you seem to take out of this that it's not a one hole group because it's a .30 brake on a 6mm. Different games and equipment give different performance and require different performance.That was my point.
This is the rifle that shot the group above. Not a benchrest rifle.not built to shoot sub .1 MOA sized groups but to be easily sub 1/2 MOA with factory ammo and it does that well.
My point is tests have proven different hole sizes changes groups. I have read various test results from various muzzle brake builders. Almost all say the same thing. For a brake to work efficiently it must have the gas hit the walls. If the walls are farther away from the bullet, it works less effecient on recoil reduction. This is an accuracy site (6MM BR). I stand by my post that a bigger hole loses accuracy. Just like some designs do also.That is what I was trying to get across to you above when you kept speaking of benchrest and talking down my rifle and group as it was due to the brake. My rifle isn't a short barreled, full taper contour barrel, no mag action, large flat bottomed super stiff bedded stock, 60x scope and shooting off a large micrometer front rest with bags holding it rock solid in place. It's not shooting ammo that has had the bullet weight and length sorted, brass weight and internal capacity sorted and super anally prepped, weighed primers etc that BR ammo is. It was shooting factory ammo, actually shots 56-60 out of a new 28" med palma contour barrel, magazine fed action in an aluminum mini chassis stock and a 4.5-27x scope on 20x shot from prone off a bipod with a hand held poly pellet filled sock in the rear but you seem to take out of this that it's not a one hole group because it's a .30 brake on a 6mm. Different games and equipment give different performance and require different performance.That was my point.
This is the rifle that shot the group above. Not a benchrest rifle.not built to shoot sub .1 MOA sized groups but to be easily sub 1/2 MOA with factory ammo and it does that well.
I have not demeaned you or your equipment, just stated facts about accuracy. But I will say it takes a real good gun to hold 1/2 MOA OUT TO 1000 YARDS. A lot of heavy bench guns can't do it. Matt
Yes you will lose a few percentage points in recoil reduction. Just like when you use a suppressor with a larger bore and lose some noise reduction but you won't lose accuracy with either. I know many people who have used oversized brakes for years and very well known riflesmiths that have no issues using oversized brakes as they have found no accuracy reduction either. Rifles shoot very accurately.
So OP do what you like but unless you are a world record BR shooter looking for the last .001" of accuracy then you won't know the difference. I will continue to use the brakes. I go by my personal experience with the cartridges and bullets I use and not a test that keeps getting mentioned with a cartridge I don't even shoot.
So OP do what you like but unless you are a world record BR shooter looking for the last .001" of accuracy then you won't know the difference. I will continue to use the brakes. I go by my personal experience with the cartridges and bullets I use and not a test that keeps getting mentioned with a cartridge I don't even shoot.
Here's some more info from my 6.5 Creedmoor with a .30 brake on it.
Trying out the first load when I got the 147s. Handload with no weight or length sorting of bullets but just powder charge weighed and brass FL sized trimmed, chamfered and debured.
5 shots
Testing out the new factory Hornady 140 ELD-M ammo when I got it.
100 yards
300 yards
Will any of that win a BR comp? Nope and it's not meant to but it wins PRS matches. It's also doesn't have anywhere near the gear, rests or ammo prep of BR and still shooting accurately with an oversized brake. Yes this site is called Accurate Shooter but not everyone wants to go through the agonizing BR methods to grab the last .001" but it also doesn't mean that rifles aren't accurate. Many different rifle disciplines are spoken of here.
Trying out the first load when I got the 147s. Handload with no weight or length sorting of bullets but just powder charge weighed and brass FL sized trimmed, chamfered and debured.
5 shots
Testing out the new factory Hornady 140 ELD-M ammo when I got it.
100 yards
300 yards
Will any of that win a BR comp? Nope and it's not meant to but it wins PRS matches. It's also doesn't have anywhere near the gear, rests or ammo prep of BR and still shooting accurately with an oversized brake. Yes this site is called Accurate Shooter but not everyone wants to go through the agonizing BR methods to grab the last .001" but it also doesn't mean that rifles aren't accurate. Many different rifle disciplines are spoken of here.
I hold my rifle, a 300 WSM really pushes you. MattHave a .338 caliber APA Fat Bastard brake on my .30-338 Norma Improved. The slightly larger diameter doesn't seem to hinder accuracy much...
Not a BR shooter, either...I like to actually hold my rifles when I shoot 'em
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