home made muzzle break

[jlgrizz]

I am thinking of making a muzzle break for one of my rifles. thought i could get some help from you guys.  when i drill the holes what angle is best for recoil and noise. I know that the noise is going to increase but is there an angle or something that can be done to get the best of both worlds.  it is going on a 308 if that makes a difference.

[Nobade]

Our shop has done a ton of testing on brakes. By far the best results came with the holes perpindicular to the bore. That is the way ours are made now, and it is kind of a nice coincidence that it's easiest to make this way. As a hint, don't drill them. Punch them with a centercutting endmill and you'll get much cleaner holes with no burrs.

[jlgrizz]

thanks for you input .  does it matter the length of the break or the size/and numbers of holes  and spacing of the holes

[Judson]

I have been working with brake design for over 15 years.    I even had an engineer who has super sonic wind tunnel testing experience from the aircraft industry get involved, (my Father, one question and thirty pages latter) .    Bottom line is angled holes, spiraled holes and that other stuff is bunk and sales pitch!!!!     As temperature, (Burning powder) goes up so does the speed of sound the higher the temp. the higher the speed of sound. however gas above the speed of sound does not like to turn corners and thus what ever angle you drill your holes in reality you are dealing with the frontal area of the holes.    The frontal area is the same weather the hole is angled or not so like mentioned before do it the easy way and drill them 90 degrees to the center of the bore.

[BRL]

For those who can't "do it yourself", what do you guys recommend? A friend had Magnaport do 2 of his revolvers to his satisfaction. Any one company better than the other? I would like to have 2 of my rifles done.

Thanks for any advice.