98Z5V

@thossoma@pm.me, from the links you provided, that's a midlength barrel, and taht gas tube is perfect, so that part is good. 18" midlength-gas .308 Win barrels need a gas port diameter of 0.080"~0.085" to function correctly. So, for the gas system, the gas tube ir right, if the gas block is on there straight, that only leave gas port diameter as a problem - which I think it is. It's probably 0.070", from patterns that we've seen as issues, on that barrel config. Recoil system - that buffer looks just like a KAK Shorty, but it's AR Stoner. At 5.3oz in a stainless body, it's almost guaranteed it's a 2.500" buffer. That means your internal depth inside the receiver extension should be 7.000". Not overall length - internal depth. ^^^ If that recoil system information is true, then you can fix that recoil system with a Sprinco Orange spring. Drill up that gas port after that - and your gun should run like a sewing machine.

Yep, that's the exact rant, on those halfway-barrels, with the in between gas port drilling... Not LR-308 or AR15 location, and not AR-10 location, either - just in between. That's what it looks like with the AR-10 gas tube in there. Longer, and more gas timing is better than shorter, and not-even-spec gas timing.

You didn't read that thread when @Armed Eye Doc directly linked it for you - before you said you would, and started this thread. Make sure you read that link that I just posted, and understand the level of detail needed... and THEN post back. Thanks in advance. It's just a guessing game and waste of time, if you can't provide all those details that are necessary. Blind-folded, and playing darts, we are...

I have no idea how many times I've addressed this specific issue, or PSA in general. It's all in here: The exact information that you're looking for is when I start a major RANT about "proper gas timing." It's in there.

He didn't read it, Doc... Not before starting that new thread. If read, not understood.

What's the story on your barrel and gas system? It's clear to see that the gas tube is the right length. But is that midlength, rifle, what's the barrel length, what's the gas port diameter? What's the details on the internal depth on the receiver extension? It's obviously a carbine receiver extension, based on the carbine buffer you posted a pic of. What's the internal depth on it? And what's teh length and weight of that buffer? reading this first will help - it explains many of the necessary details we need, in order to try to ATTEMPT to solve a functional issue, over the internet...

Varget and Alliant RL-15 are about identical, so both are great for .308.Win heavies and 5.56 heavies. For Creedmore, there are better powders out there. On my .260 147 ELD-M loads, I use RL-22. RL-17 is supposed to be THE SHEIT for 6.5 heavies like these. I'm not switching, I have a laserbeam. On my .308 178gr ELD-X loads, I only use Accurate 2495 powder. Next, mags. MagPul LR-20 Pmags. Fully loaded, they're 2lbs each. Something to think about. The 25rd MagPuls would be up next. If you feel like spending more money for better mags than that, get the Lancers. They are unrivaled. Next, the reloading. Sounds like you're looking for precision, and not bulk-range-ammo. For my precision handloads, I use a single stage press, individually drop each charge lower than I want, and trickle every single one of them up to my desired load charge weight. I don't use a progressive,and check case fill periodically. Not for precision loads. No way. For my bulk range ammo, that's okay. 115gr 9mm, 55gr 5.56, 150gr .308, 150gr .300BLK... yeah, set the powder measure, get it accurate, check every 8 or 10 drops. That's fine for range ammo. Doesn't work for precision ammo, and that seems to be the direction you state you're going. My $0.02 on that part.

Which Nightforce NX8? There are 3 different mag ranges. This ties into the max distance question...

Here's my numbers - my own DOPE - on my two guns. .308 Win gas gun, Mk11 build, 18.5" Krieger-Criterion custom profile for Fulton Armory, rifle gas, 0.936" gas block diameter. I load Hornady 178gr ELD-X projectiles that leave the barrel at 2530fps. 0.278 G7 on that projo (0.552 G1). It blows M118LR out of the water for speed, and it's an expanding projo. It's supersonic to 1050 yards, with 491 ft/lbs of energy at that distance. So, that's the question for the purpose of the rifle - which was partially answered - but the max engagement distance still needs to be known for that goal. Here's the data on my .260 Rem load - of which, the 6.5 Creemoor would be very close, if loaded with the same projectile, at the same muzzle velocity... .260 Rem gas gun, 20" Wilson Combat hunter profile barrel, rifle gas, 0.750" gas block diameter. I load Hornady 147gr ELD-M projectiles that leave the barrel at 3650fps 2650fps. 0.351 G7 (0.697 G1). Supersonic to 1500 yards. I'm about to "coax" it another 260 yards, and shoot it at the mile target. Compared to the .308 Win 178 ELX load at 1050 yards, this load has 755 ft/lbs of energy at that distance. At it's 1500 max supersonic, it's 420 ft.lbs of energy. So, your stated goal, without a distance, in kinda vague-for-a-reason, the distance still needs to be known. Depending on max range, my advice might be "don't change a thing, shoot the gun, and come up with a good handload." My advice might change, based on that max distance. P.S. For your chosen recoil system components, buy the Armalite EA1095 recoil spring. Gas port diameter for a .308 Win 18" rifle gas barrel with a 0.750" gas block journal should be around 0.096". Gas block journal size is key to this number, and gas port diameter changes when it's larger or smaller. For my .260 Rem, 20" rifle gas barrel with 0.750" journal size, my gas port diameter is 0.080". Also, NO, you do not need +1 or +2 rifle gas system on an 18" barrel. Ever. Standard rifle gas is more than sufficient.

That's a solid setup, right out of the gate, right there. That Criterion barrel is a good one. No need for custom barrels, when you've got that in there already. So, right off the bat, I don't own any 6.5 Creedmoors -none. But I do have a .260 Rem gas gun that is just a laser. As you probably know, those two cartridges are virtually twins, with the case capacity and velocity advantage going to the .260 over the creed. So I can speak on the 6.5C, as well. I know the capabilities of the cartridge design, as well as the projectile. You stated this as an objective, but never stated a max range for that objective...

This is gonna get Spicy! I love it...

Snuffy, what's your goal for this gun? That's first and foremost. What do you want it to do for you? Hunting, blasting steel targets at a grand... Need the objective of the rifle build, first. For getting those Berger 130s to 2650fps,that should be easy. I'm getting the Hornady ELD-M 147s to 2650, in my .260 Rem gas gun. I'll address more, as it goes along. P.S. Ditch the lightweight carrier. This all comes back around to what you want to do with the gun, than anything else, but those are Race Gun parts. If you're building a Race Gun to go win more competition money, with that specific competition load, then I get it. Otherwise, it's a waste of diagnostic time when the gun doesn't run right, and it's a waste of money. Just use a regular, full-mass BCG, either nitrided or NiB. I recommend ToolCraft. We'll get into the recoil system shortly.

I really like the one that I've got. I only have one so far, but it has done it's job well.

You're not building this yourself? You had someone else do it? Why is that?

What I've been saying for a long time now, brother - and I agree completely. LaBronica... You fucking PLAY BASKETBALL. As a Pro. You're paid to ENTERTAIN ME. So get to your fucking JOB already! I didn't watch Pro Basketball, to hear about Politics. I watched Basketball to get AWAY from Politics. Same with Baseball, Hockey (they're doing okay right now), and ANY OTHER professional sport. You're nothing more than Entertainers, and PAID FUCKING WELL to entertain me... So get to it. Shut your mouth, and get to earning your paycheck. I don't need your side-bullshiit, so don't think that you have a right to push it on me, just because of the millions that you've made off everyone in this country. You're overpaid. Hollywood - SAME SHIIT. ANY actor out there - I give not one single shiit what your political views are. Not one. I don't care how you feel. I used to buy movie tickets to watch your latest movie, just to SEE ENTERTAINMENT. You are not SO BIG that I care about what you think, Politically. Go suck yourself off, if you think I should conform to your political views, just because you were a popular actor/actress. Fcuk off. You motherfuckers need to get BACK to what your job is, in the first place. Everything else is a distraction, in what people PAY YOU to do. Once you start branching out, and thinking you can push your Political beliefs on your viewers, just because you're a popular sports/movie whatever... You should be fired. CANCELLED... And that's gonna SUCK for you... All that fame that you seek so bad... flushed down the toilet, because you can't stick to your job.

That "broken" thing is a trip, yeah?...

Good catch, Steve, and great timing on the catch. Taking care of direct family is paramount. Don't sweat the gun build - we'll come up with a million ways to spend your money for you...

Got my shipping notification today, for the 158 mount and another piece, which was placed on 27 Feb... I called anyway, and got good info. ALL prices went up last Saturday. There was no was they could keep the prices the same, with what they pay for materials now, in this hysteria, so they raised prices across the board, on all items. I asked about my two items, just to see which one hung the order up - he said first it was the 158, and right before those came back into stock, the other one went out-of-stock. Combination of both, at the worst possible different times, is what got me. I asked about the prices, with VFZ usually being $50 cheaper, but now they're both the same price, and he agreed that was odd, but doesn't know why they decided that. Anyway, because it was an order from Feb, the VFZ 158 mount was $160.

Wow, just read it. That is one hell of a human being.

NICE, brother!!!

Never heard of it, man.

I'm down with 5 of these things now - it's a sickness. 2 are factory pistols. the 19X is real no-kidding bone-stock. As it came. The 43X is internally bone-stock, but I put some tritium night sights on it - it's my carry gun, my daily. I won't have a carry gun that doesn't have night sights. That 43X was converted over to the Shield Arms metal mag catch to run the Shield 15-rd steel mags for it. So, I can carry a spare 15-rd, 1 in the chamber, the 15 in the gun, and have 31 on me -in a small-motherfucker package. Nothing to dislike on that one... Carry guns for me have to run 500 rounds straight, ZERO anything, malfs, stoppages - NOTHING, before it's a carry. Then it needs tritium sights. That little fucker 43X pulled that off in 500 rounds exactly. Same with the 19X. Flawless. That was a baaad road, that 19X... I bought that bitch Blue Label, because GunPusher John had it. Glock Blue Label Program is fuckkin' SWEET! You get Glocks, cheaper than gun dealers get Glocks. Mil/LEO program for Blue Label qualification. Dirt cheap. That 19X led into 3 P80 lowers (thanks, @MikedaddyH, you jackass! )... built up on Gen 3 stuff. Two run, one still needs a slide assembly. It really is a sickness, once you see them run, run them, and shoot the fuk out of them. It just ain't right. It really is the AK of the pistol world. I'm thinking about buying another 19X, just to mod the fuk out of it...

Nice, brother. I cannot WAIT to see it!!! You know already... I'm sure of this...

That dude can SWIM HARD AF!!!...

That's a good article - great info. But, the guy doesn't own one, he's just comparing numbers on paper in that article. He even states that at the bottom. However, that's why I built one, early on. I know the Grendel well, and that's why I built a Valk. Gotta live up to the hype... The Valk was cool, but not what they all said it was. The ARC definitely IS all that they say it is, and I'm damn glad I built one (two). My recommendation is the same, for everyone. If you have a Grendel, don't take it apart to make it an ARC. The difference is minor. If you don't have a Grendel, but were thinking about building one - build an ARC. Either way, you're not going to regret your decision - they're both badass, very badass... with a slight edge going to the ARC. It's like all the Hype on the 6.5 Creedmoor... - and .260 Rem. The Creed is great! But the .260 has a slight advantage. But neither are going to leave you disappointed.