Re: AR Feeding Issues
Posted: Sat Jul 14, 2012 6:46 pm
ixslr8 wrote:Most rifles cycle faster than necessary, and the resulting “bolt slamming” effect is a noticeable part of the recoil impulse.
The main purpose of our adjustable gas block is to allow you to adjust the port pressure to the operating system, thereby finetuning
the bolt velocity, which will result in a smoother shooting rifle especially if you already have a JP Recoil Eliminator or JP
Compensator. Additionally, the JP Gas Block is also useful in obtaining optimum port pressure on otherwise difficult to run
setups such as suppressed weapons, short-barreled weapons, or unusual chamberings for nonstandard cartridges.
To adjust for your load, turn the gas adjustment screw in all the way to close it off. Then, back it out approximately two full
turns, and load one round in the magazine and fire. If the bolt holds open, the gas block is set. If the bolt does not stay open,
it is short-stroking, and the valve should be opened about another half turn. Continue backing the gas adjustment screw out
until the bolt holds open consistently on last round. Test this again with one round in the magazine.
ok i tried these instructions per the jp website. i put one round in the mag and adjusted the gas screw to two turns out, chambered the round, fired and it held the bolt back. I repeated this same test with 2.5, 3, 3.5 and 4 turns out and they all held the bolt back. I repeated this test with one round in the chamber and one in the mag with same numbers of turns on the screw. It would not chamber the second round with any of these settings. I guess my next step is a new mag.
Sounds a whole lot like someone went back to the range without me
Just sayin.
