Buffer and system balance
AR15BARRELS.COM - Randall's description of AR gas operation and how everything works in harmony
Car std 3.0oz
Car H 3.8oz
Car H2 4.6oz
Car H3 5.4oz
RRA 9mm 5.6oz
Normally pick the heaviest one that will still cycle WOLF reliably and lock back on the last shot.
Take 20 mags, and load them all with ONE round. run through that cycle a few times, and you can be reasonably certain that the rifle will function correctly with that particular buffer.
HOWEVER. keep in mind, that when the rifle gets hot and dirty, you then may start experiencing short strokes with a heavier buffer.
SO, whatever the heaviest buffer that will reliably lock back on the last round, fully cycle........EVEN when using UNDERPOWERED ammo (wolf) and with a dirty action.
THAT is the buffer you want. a proper weight buffer will minimize battering of the parts, soften recoil impulse, improve follow up shots, increase dwell (hense increasing accuracy, and minimizing chamber blowback).....etc.
Super great info on the ARs guys. Thank yall.
Keep the info coming please. I be a learnin..
Like I was saying. These ARs are like a race car. When running properly, they are one fine weapon.
Good read their Gunny. Got a lot of info out of that article.
Interesting about the barrel crown and how escaping gas will throw the bullet off. Often wondered why they told us too clean our weapons from back too front. So as not too damage the barrel crown.
BBill. Oh yeah Tiger ammo. Flame. Especially in our Mall Ninja shorties for sure. :)
Just came across this thread. Exellent info.
Originally Posted by 4thIDvet
well at least the russians thought to put powder in the GT! maybe a bit too much sometimes! LOL!
i think some of this tula must have got loaded with cornstarch and floor-sweepings! LOL!
My first outing with my x39 piston build was much like yours. I too had a Del-Ton barrel. It would eject Wolf steel cases but would not strip another round from the magazine. It would also eject cases about 2-3 feet @ 3o'clock. So when I got home I re-installed the FSB, checked the piston rod for binding and measured the gas port. I forget what it was but it was different than my 5.56 port. The next eange visit I fired about 100 rounds with no malfunctions except for 1 dud round. So apparently the gas block/ FSB was crooked. There is a little play in the front sight pins or holes I guess.
So before enlarging the gas port check to see if the gas block is on straight.
Not a bad sanity check....:fruit:
Originally Posted by LA_357SIG