The ONLY muzzle brake
that is more effective then my 5 port is the factory armalite muzzle brake that comes on the factory rifle. Unfortunately, because of the muzzle diameter of the barrel on that rifle, it would not allow the factory brake to be used.
There is simply no way to eliminate a 50 cal weapons recoil, that said, recoil is nothing like a conventional rifle. While it may appear severe, it really is not in any way. The big 50s just MOVE alot. By that I mean, they will slide rearward 5-7" on each shot, much more then a conventional rifle. Recoil velocity is quite slow however so its a slow push in the shoulder.
The problem is that since these rifles move back so much under fire is that you have to shoot them differently then a conventional rifle, especially from a bench. You have to keep your neck tightened up because if you shoot one of these rifles totally relaxed, the rifle will come back enough that with a relaxed neck and shoulders, you will become intimate with the scope!!!
Also, you have to keep your hands and other things out of harms way. Position your hand in the wrong place and get it hit by the bipod mount or pistol grip and the 30 to 35 lb rifles movement under recoil will remind you pretty quickly that your hand was in the wrong location.
Back to recoil. when you set a 30-35 lb rifle into motion with this kind of energy, there is only so much ANY muzzle brake can do to slow the rearward movement of the rifle down. Basically, thats they will do, slow the rifle down a bit. The heavier the rifle, the more it will move you under recoil simply because the rifle has more momentum and also because the heavier rifle is harder for the muzzle brake to slow down.
My sporter weight versions of this same rifle use a Lilja Navy contour sporter barrel, similiar to the factory barrel contour but I then have them fluted with Dans heavy 50 cal flutes which drops weight significantly so you get a rifle that is several pounds lighter then even the factory rifle. With these I can reuse the factory armalite muzzle brake which again is THE best 50 cal brake on the market hands down. felt recoil with the sporter version of the 510 AM feels sharper then the heavy rifles because recoil velocity is higher but its a lighter push because the muzzle brake slows the rifle more effectively. Not sure if that makes sense or not.
Heavy 50 cal rifles will move you alot but its a push. Lighter 50 cal rifles (with the best brakes) will slap you a bit sharper but move you less. Same as any conventional rifle, just scaled up for the 50 cals.
This rifle is also loaded to pretty mild levels, obviously because the rifle likes this load. At 2700 fps with the 750 gr A-Max, this is a very mild load in the 510 Allen Magnum but obviously an extremely accurate load as well.
In my personal Sporter 510 AM, my load produces 2960 fps with the same bullet and out of a barrel that is three inches shorter then this rifle so it shows the potential of the round for performance. These higher pressure loads also make a muzzle brake work more effectively, especially out of the lighter rifles because they have a dramatically higher muzzle gas pressure which is what makes the muzzle brakes
work better. The larger the gas volume, the higher the gas pressure, the better the muzzle brakes work.
In a heavy rifle however, these heavy loads induce more energy into the rifle so they have more momentum and they are even harder to slow down with the muzzle brake. Again, nothing severe but more movement then with a lighter rifle.
Simply put, you would be very hard pressed to find a more effective muzzle brake then the one that is on this rifle unless you used the factory Armalite brake and as mentioned that was not an option with this large muzzle diameter.