Aluminum Muzzle Brake, potential corrosion?

Boomhauer440

Boomhauer440

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I built a muzzle brake for my mosin a while ago. It is incredibly effective, almost no recoil at all. However, it is very big and heavy, throws off the balance of the rifle, looks kinda weird. I'm planning a smaller, lighter one with a slightly different design out of 7075-T6 Aluminum. Problem is I'm worried that the aluminum will corrode on the steel barrel. Does anybody here have experience with aluminum barrel devices?

Pic related. Current Brake.
F7LEMo8
 
I would think that if you had a barrier on the threads like paint or gunkote that would keep the aluminum and the steel from direct metal to metal contact you should be fine.
 
I suppose I could use a barrier compound like mastinox or something. But if I'm not using loctite on the threads I think I might need to find another way to prevent it from turning.
 
Boomhauer440 said:
Ya HeadDamage I never thought about the damage that the blast itself would cause. 7075 should be strong enough to take that though.
Click to expand...

ROTFLMAO

This is a hardened steel brake. Aluminum is many times softer than this material. This brake is on a 223 rifle, your Moisin burns at least twice as much powder. An aluminium brake will begin to get eroded within the first few rounds and will be suffering serious wear within a couple hundred rounds at best.

P6131746.jpg
 
An aluminum muzzle brake is suitable for .22 lr. and nothing larger (maybe pistol rounds). Regardless off what the rest of these guys say, it is a terrible choice of material for a muzzle break. Re-design your existing brake to make it lighter, a brake need not be large to be effective.
 
Ok I guess I'll go with my smaller design and just stick with the same steel I made my existing one out of. I just wanted to save as much weight off the barrel as I could while still remaining essentially recoilless. Thanks for the help guys.
 
A customer of mine had a break made by a fellow and I think he used 303 SS. The gun would shoot great for a while then very erratic and then back to good. What he discovered was the blast was actually melting a little gobule off the break and sticking it where the bullet would just touch it until it broke off. The guy that made the break redid it in 416 with no problems after that. I would expect alu would have a problem but it would be an interesting test to see if anodizing would hold up for a while.
 
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