Re: Building a 300 BLK

by SHANE704 on Wed Dec 14, 2011 4:01 pm

how do you open the gas port? just drill?

by titleiiredneck on Wed Dec 14, 2011 4:06 pm

Drill with small inctease in bit dize to advoit burrs inside the gas port

by miker84 on Wed Dec 14, 2011 4:08 pm

I've got the pistol length gas system on mine, but am thinking of going to an adjustable system. I haven't had any cycling issues, but full power loads aren't recommended for pistol length gas. I haven't had any issues with full power loads yet.

by RON55 on Wed Dec 14, 2011 4:13 pm

titleiiredneck wrote:Sounds like you either have a heavy buffer and or a gas problem. Is you gas in the pistol or mid position? Whats your bbl oal?

Just installed a new 6-position stock. It is a carbine length gas tube on a 16 inch barrel.

by titleiiredneck on Wed Dec 14, 2011 4:16 pm

Yeah theres your most likeley culprit, too heavy of a buffer or undergassed since in the carbine position. For a adjustible gas block I reccomend pri but it depends on gas block ID.

by RON55 on Wed Dec 14, 2011 4:20 pm

titleiiredneck wrote:Yeah theres your most likeley culprit, too heavy of a buffer or undergassed since in the carbine position. For a adjustible gas block I reccomend pri but it depends on gas block ID.

If it is drilled to .125 doesn't that mean that is getting more gas. It will cycle the 147gr. now. What I am wondering about is what will happen when I shoot 125 or 110 gr ammo.

by titleiiredneck on Wed Dec 14, 2011 7:18 pm

.125 is the correct gas port for a 16" with the carbine position . Brought this up to a friend who builds these barrels and he agrees.

by titleiiredneck on Wed Dec 14, 2011 7:21 pm

This is the adj gas block to have if .750

http://www.midwayusa.com/product/775354/pri-low-profile-adjustable-gas-block-ar-15-standard-barrel-750-inside-diameter-steel-matte

by RON55 on Wed Dec 14, 2011 7:40 pm

titleiiredneck wrote:.125 is the correct gas port for a 16" with the carbine position . Brought this up to a friend who builds these barrels and he agrees.

Also just looked at the gas block and where there was black soot before drilling the gas port, there is no soot on the barrel now. Thanks for the help. I will be ordering a adjustable gas block.

by titleiiredneck on Wed Dec 14, 2011 8:02 pm

Just make sure you order the correct size, also if you have a ff tube that covers your block you may need to check the size of the block to make sure it fits under your ff tube.

by RON55 on Wed Dec 14, 2011 8:10 pm

titleiiredneck wrote:Just make sure you order the correct size, also if you have a ff tube that covers your block you may need to check the size of the block to make sure it fits under your ff tube.

It is .750 and the one you recommend like the one that is on now only non-adjustable

by titleiiredneck on Wed Dec 14, 2011 8:14 pm

Great! Glad I could help.

by rsilvers on Fri Dec 23, 2011 4:13 pm

Ammo:

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78183

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78482

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78043

by titleiiredneck on Fri Dec 23, 2011 6:39 pm

rsilvers wrote:Ammo:

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78183

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78482

http://www.300blktalk.com/forum/viewtopic.php?f=151&t=78043

Are you a paying advertiser here?

by BeRichH on Fri Dec 23, 2011 7:07 pm

Is this THE Robert Silvers of AAC?

by rsilvers on Fri Dec 23, 2011 7:13 pm

Yes, Merry Christmas.

by rsilvers on Fri Dec 23, 2011 8:34 pm

http://www.youtube.com/watch?v=Q5ALp8-d3dQ

by RON55 on Fri Dec 23, 2011 8:43 pm

Just bought and received 2 boxes of 150 fmj from Right To Bear Ammo, out of Texas. Very good customer service and quick shipping.