98Z5V

With the amount of JP Race Gun Parts in this build, the best bet for diagnosing what's going on with your gun might be a real telephone call to a tech at JP Enterprises...

My sentiments, exactly.

That's a Race Gun that you built, with a shiit-ton of complicated Race Gun Parts. You complicated shiit with complicated shiit. This won't be easy. If you're denting brass, it's hitting the brass deflector HARD, and denting the brass. Overgassed. If you're ejecting at 1 and 2 - many say that's a sign of overgassed. I don't give a shiit where my brass ejects, as long as it gets out of the gun everytime. But, if it's damaging brass... ...do you reload? Yes = that could be an issue. No = the gun is cycling, getting brass out, and maybe beating up internal parts over the long run. Your call.

That's Roger - formerly of Battle Arms Development. All his design, and company. Roger shall never be spoken of in other than Reverent Terms. He's amazing.

Exactly. These rat-bastard twin black tiger cats are pushing my limits. They're 9 months old now, and bigger than "full-sized cats." And, they're assholes. TactiCat still smacks them around, but they're pushing his buttons, too. Complete jackasses. They were fucking up the other day, and got the electric leaf blower blasted at them. Fukheads.

That's what I get for not reading down to the bottom of the thread, before replying. Amazing little girl, Cliff. Wrapped up like a little burrito - get her home soon.

True Double-Feeds are ALWAYS a magazine issue. Nothing else. Either feed lip problems or too much spring pressure, but Double-Feeds are magazine related, only. That's a"Bolt-Over-Ride" - and it's the worst Double-Feed to clear. It sucks more than anything else out there, to clear. I've seen 'em, lived with them - and it still comes back to a true Double-Feed - which was caused by the magazine. Bolt-Overs suck. I have a simple way to clear them.

That's not true, brother. Longer barrels don't necessarily need larger gas ports, and barrel length really doesn't have anything to do with it. Dwell Time and Gas Block Journal Size directly affect gas port size, though. Dwell Time is the larger factor, then journal size, but they're both very, very important in determining gas port diameter. Caliber/cartridge power is 3rd on the list, and important. Ever seen a 16" barrel with a 0.105" gas port? I have, and I know that's the only way that particular barrel will ever run, properly.

I pulled my 8mm Mauser the same way - guy had it, never even unpacked it, and needed about $375 in service work to his rig. I traded him the rifle for the service work bill.

Sign-Language Interpreter NAILED that one, for certain...

12.5" SIG 716 .308Win piston-system barrels - that we run as DI Gas Guns... These are were the CDNN blow-out barrels for $49.95. Mine was a 12.5" barrel with a 0.750" journal diameter, 0.070" gas port diameter. Dwell time measurement on my barrel was 3.500", center of gas port to end of barrel crown - this might be important later, because you carefully need to measure YOURS. On that barrel config, I needed a gas tube that was exactly 11.000" long. Perfect calculation and measurement, once the custom gas tube arrived from White Oak Armament. Gas tube was perfect, and WOA nailed what I asked them to do/make. Functional test - this 0.070" gas port diameter gonna work on a 12.5" barrel, with a 3.500" dwell time?... First round lock back, virgin gun, lubed properly, one round in the mag. Gas port was right on it. This gun runs. Recoil system details are: 7.000" internal depth AR15 receiver extension (what comes with the SBA3 kit), hybrid (home-cobbled) 2.500" buffer that's 5.7oz, and a Sprinco Orange spring. There are some people reporting, and posting accurate verified pics, of needing a gas tube length that was 11.250". That's a longer gas tube, and that shortens dwell time, on an already shortass barrel. No details on their recoil systems, but that's something to be aware of - if you HAVE one of these barrels, you better measure three times before you order a custom gas tube. And the only place on the planet that is making custom AR gas tubes is White Oak Armament. If you're building one of these, pay attention...

"Tell Osama To Suck It..." I love musicians that support the military, and 5FDP is at the very top of that peak. Rock is right there tight, too...

Welcome aboard, man. Anything you tumble into along the way that trips you up - just ask. Someone here has seen it, or had it happen to them, and we've figured out WTF is was that caused it. We sometimes forget where the info is, but we'll find it, eventually... Glad to have you.

These two get Honorable Mention, after what DNP posted...

^^^ I LIKE IT!!!

Here's another great one - Dr. Hal Kushner. He spent 5 years as a POW in Viet Nam.

One of the greatest speech-presenting Presidents we've ever had as a country.

On another note - got to run the new IWI semi-auto shotgun today, too. 5-shot tube, three of them, rotating. 15 loaded, with another in the chamber. This is sweet.

Complete success this morning, complete. Didn't have to touch the 0.070" gas port, not even a little. The 11.000" gas tube is right on the money, length-wise, and the very first round out of the gun locked the BCG back on the empty mag. This thing ran like a champ. I had an old batch of 150 FMJ-BT handloads that I wanted to shoot up, so I fed it the whole bag. There were about 80 left in that bag, and this thing ate 'em all and didn't eve hiccup once. Damn, I love this little bastard. Even the iron sights were right on, right out of the package and onto the gun. GPJohn had two 8" plates set up at 30 yards, and it was .308-on-steel right away. I'm sure they need tweaked a little, but I didn't even take targets out there today - just wanted to get this thing to run - and, MAN does it run! Now, I wish I would have taken some real targets, and dialing this thing for 50 yards. I've been on a Primary Arms pre-order for about a month and a half for this: https://www.primaryarms.com/primary-arms-slxz-advanced-rotary-knob-micro-red-dot-sight-fde Got my shipping notification yesterday. This thing went together smoothly.

No matter what, in this free world, brother. No way... ...Can you EVER go wrong with chainsaws and generators. It's not even possible. You've done well, I commend you, and I'm jealous...

^^^ his big brother needed his ass kicked YEARS before. Just my $0.02 on that fucker.

"4-Minute Mile"... just finished it right now. Powerful movie. Quite worth your time.

@392heminut - Larry, lemme know when you'll be in CG next. I'm in for a bunch of tickets, brother. Bring $100 worth. I might get lucky this time.

Remember, Honor, and be Eternally Grateful... for those that gave all for you, so you can live the life that you do and have. Without them, you and I wouldn't be here right now, living the life that we can and do. Without them, we wouldn't be the free country that we are, with the possibilities that we have, and the opportunities that are at our feet. What we do, from now on, with what they sacrificed to give us right now... that's on us. Let's not let them down. They gave everything.

^^^ For the origins on that one...