98Z5V

Armalite EA1095 spring. That's the Armalite part number. That's what you need.

Aaaaahhhh... The mystique and the legend lives on... Come to a Fall Shoot, people!...

That WAS the last year rifle a pistol challenge, brother. 3,000 yards. If anyone doubts us, they can show up and find out...

3,000 yards.

That's a rifle receiver extension, there. There's no "mil-spec or commercial" with rifle gas systems... What's going on here? How long is your buffer? it needs to be 5.200" long. And not 5.900" long... You have an AR15 carbine buffer spring in there, or a really wrong copy of a .308AR spring. Whatever it is, it isn't right.

DAMNIT!!! Kiwi has a point, and a big one, but it's not why to stop. It's what you keep when SHTF. If I only got to keep one, I'd keep two.. If I got to keep two, I'd keep three. I'd keep them all until they were completely, hopelessly useless, and be forced to ditch them one by one. I travel with a trailer, and I wouldn't toss any of them until I had to...

What do I win, here? What's the "contest" that you've announced in the contest section? You gotta tell me what the prize is, man, before I start throwing down answers.

And 300BLK, 6.5 Grendel, .45 ACP, 9mm, 25/45 Sharps, 6.8 SPC II, .22LR, what am I missing here... what caliber... Oh! .224 Valkyrie. Long barrels, short barrels - they all have a purpose, in all those calibers, and barrel lengths. They all have a role to fill. In the Big Frame (besides .308 Win), you've got the 6.5 Creedmoor, .260 Rem, .338 Fed, .243 Win, 7mm-08, .358 Win... Those last five are ALL based on the .308 parent cartridge, too... Bonus - reload your .308 brass, on most of them. You might have to turn down necks on the smaller ones. Why stop on either one of them, until you're done?...

I thought that was the one I'd seen yesterday - there's no serial number in that pic, brother.

Block the serial number with MS Paint, and get the photo back up - that photo eliminated all doubt as to the length of your gas tube. By the way, the only person in the world that would have been able to track your firearm, by serial number posted on the web, is your FFL.

Gonna need details on that stuff, man. Measurement time. Internal depth in the receiver extension? How deep is it, inside? A tape measure is good enough for this, and it's either gonna be 7" internal depth, it it's gonna be REAL close to 7 5/8" internal depth. You stated "mil-spec" so it's carbine length, and not rifle length. You're running a carbine recoil system, but we need to see what makes it up. How long it the buffer? It's it 2.5" long, or is it 3.25" long? How much does the buffer weigh? What is the relaxed length of the spring - out of the rifle, laying on the table - how long is it? How many coils in it, end to end? Can you measure the wire diameter? That's the kinda necessary stuff, right now. Nothing else can be figured out until that info is up here.

What recoil system components are you using? Details. What parts, from what vendors, etc. What makes up your recoils system? The receiver etension, the buffer, the buffer spring - where did all those come from and what are their dimensions/specs? A stiff buffer spring isn't gonna cause a round to stick in the chamber. A stiff buffer spring will actually aid in extraction, over a weak buffer spring.

He had another pic in there yesterday, that showed a straight-down pic into the upper receiver - and his post has been edited now. That pic was edited out. Gas tube is fine.

Call Aero Precision, and inform them of what's going on. They will take care of you.

So is an AR in 6.5 Creed, or .260 Remington. I'm just sayin'...

That's what I'm thinking. Wouldn't expect it from an Aero/BA barrel - but I just had to polish a Wilson Combat chamber in one of their barrels. That gas tube is fine, in length. That's what an "in-between" gas port looks like with an Armalite AR-10-lengthed gas tube. That gas port in that barrel isn't DPMS_lengthed. It isn't Armalite AR-10-lengthed - it's in between those two lengths (like Faxon does now on 308 barrels). That gas tube is good, and it clears your gas key when the bolt is fully closed.

I like that, but you left out another rung on the ladder. It goes a step deeper... but it's MUCH deeper... First Sergeant. That's what the Sergeant Major was, before he got promoted to Sergeant Major, got "an office," and "started missing the troops" on a daily occurance. That's the last time he actually had troops directly under his authority, and he set shiit straight every single day. Commended well-doers, cracked skulls of shitbags. Kicked the Company Commander STRAIGHT in the ass on a daily basis, to keep the mission on track. Chewed Platoon Sergeant's asses like they were Tic-Tacs. "Counseled" subordinate NCOs just by being present, in their space. Continually beat down Platoon Leaders, because Lieutenants need that for their career development. Strong NCOs make stupid LTs into GREAT Officers... This is all before morning PT was over... THEN, he would drink his second pot of coffee and continue through the rest of the day... Daily. Moving into that "office," and not being in direct charge of troops daily, is what made the Sergeant Major so mean in the first place... What he did BEFORE that is what made him the badass...

Gas tube length is good. That's one of those "in-between" barrels - the gas port placement in between Armalite AR-10 position and traditional DPMS LR-308 position. It's a 12.06" gas tube (12 1/16"), which is exactly what you need for that barrel. It's not the gas tube length, that's for sure.

Damn, Lane - that is awesome!

I need more info from Jeff, before I can call that one.... I need to know what his guy was doing on that run.... to be able to explain that rpm and boost pressures.... @washguy

Not in this case, brother - here's a piece of the chart data he sent me, and that I caught on to, right away. Engine rpm and boost pressure - he said this was an "easy run by his guy that was tuning. Unless he feathered the throttle towards the end of the run, then this ain't normal. He was good to 5095 rpm, with boost, and then the boost dropped off. His guy cut the run at 5914 rpm, chopped it - boost spiked because he slammed the throttle, and the blow-off valve took over - and eventually dropped pressures. Quickly, really. He lost boost on that run after 5095 rpm - because his wastegate actuator(s) on those twin turbos can't keep up, and they can't even keep the wastegate closed now (with increased boost), under a Zero-to-Hero run. ... He outrun the actuators, with more boost. He needs stronger wastegate actuators... I'm just sayin'...

I've got a bigger issue with the data he sent me - hes dropping boost on WOT runs, so that means his wastegate actuators sucks - for the boost he's throwing at them. He's at 14 psi, and it drops under accel, at higher rpms, from what he sent me. - What's the stock system boosting to? Those wastegate actuators (stock) are shiit, and can't contain the pressure at a WOT run, with what he's doing now. They're blowing open under a WOT run, and he's dropping boost before he gets to the end of that run- and he said his guy "was taking it easy..." No Bueno....

My "generic" load of .308 Win "range ammo" with "I-don't-care-what-brass-it-is" is the Hornady 150gr FMJ-BT projo, CCI 200 primer, and 43.6 grains of RL-15. It's never over-powered, never under-powered, and does a decent job of keeping the rounds where I want them, no matter what rifle or scope, out to about 300 or 400 yards. I've blasted them to 600 yards with effectiveness, and not far off on the scope, no matter what rifle. If it wasn't a FMJ round, I'd hunt it. Like he said, kinda - I load them 2.720" and that gets you to the bottom of the crimp area - and crimp 'em.

@washguycheck your email, brother. You need new wastegate actuators... The ones you have in there now are too weak... They're not holding the wastegates closed under a WOT run... They're "bleeding off" and you're loosing boost at the top end on your Zero-To-Hero blasts, brother... I just went through the initial data you sent me... This is a twin-turbo, right?

HELL YES!!! That's Long Range Day, too!!!