I wouldn't mind a really light weight bolt carrier group in one of my AR's that has an adjustable gas block, but the carrier linked to by the OP doesn't look sound.
Printable View
I wouldn't mind a really light weight bolt carrier group in one of my AR's that has an adjustable gas block, but the carrier linked to by the OP doesn't look sound.
I have an AR that I re-barreled and it is more or less ending up looking a lot like a 3 gun rig. Running an adjustable gas block in conjunction with a non "H" marked buffer really makes the cycling nice and smooth with any load I have tried. I also put an utterly obnoxious Dreadnaught F2 compensator on it instead of a flash hider since my days of getting into gun fights at night ended when I returned from Iraq and got out of the Corps. Plus I have a Colt 6920 for serious social applications...
At any rate where light loads are concerned, it is my experience with that comp and maybe more dedicated 3 gunners can chime in here, that the hotter the load the better the comp works. It seems like the more gas I can get to it, the less muzzle movement I get. Frankly it makes me laugh like a lunatic every time I shoot that rifle because it can be run so hard, and just about never leave the target.
The noise is horrendous though, and I'm pretty sure the side blast could scour paint off of a wall. The upside is that even at up to 15X I can spot my own hits in the scope, which is really handy on coyotes.
That's because the muzzle brake is like a rocket engine- the more gas you put through it, the more thrust it makes
Figured it was something along those lines.
MK 262 and equivalent reloads, both which seem to be on the hot side really run the comp well.
Weak sauce BHA 55gr remanufactured and even weaker Wolf 55gr seemed to have more muzzle movement.
That is true. It is also true the higher pressure the gas the more thrust which is why muzzle brakes on guns like 458 SOCOM or 450 Bushmaster have little effect. By the time the bullet exits the muzzle the gas has expanded in the large bore to such an extent that it has relatively low pressure as compared to a 7.62 or a 5.56.