12-14-2004, 06:49 PM
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Senior Member
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Join Date: Dec 2004
Posts: 111
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Patriot762 Wrote :
Quote:
Hey,
I tried the JP adjustable gas block with an enlarged gas port on a 16" barrel.
I couldn't get any functionality with any subsonic loads. 180 gr bullets, H110, and one other fast powder.
I was able to get it working with an H335 supersonic load. More pressure being built further down the barrel.
Since there's no real reason to have a 300 that can't be used subsonic, i had my smith install a pistol length gas system.
I haven't played with a lot of different loads, but it functions every time so far with subsonic. I probably should get an adjustable gas tube or new gas block when i get my suppressor, so the added back pressure doesn't beat up my receiver. (I used the JP gas block on another rifle)
your best bet is probably to shorten your gas system and use the JP block. Just make sure that the handguard you use is big enough to squeeze the gas block under. Mine had to be milled down quite a bit to fit.
Badger ord might be working on an adjustable block with a lower profile. Or you could go with the Fulton adjustable tube.
It's easy to fill in the old carbine gas port. you can't even tell where it was on my rifle.
Good luck, and write me if you have any other questions.
JC
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