98Z5V

Makes sense. We've been using the M-RZR for long while, and getting ready to ship some to Poland, so they can ship them to Ukraine.

I saw that exact thing happen when I was building my Matrix Aerospace set.

Rifle receiver extensions are all the same, AR15 (A1 and A2), .308AR, whatever. If made right, they're all 9 11/16" internal depth. Combine that Slash buffer with an Armalite EA1095 spring, and you'll be set.

Gas port is too small. 20" rifle gas on a 0.750" journal needs a port diameter that's 0.096", or damn close to that. Yours is 0.010" too small, and that will cause the exact problems you're having. Everything else in the build looks good.

I knew there was something. I trained up prior...

That's me - and 17 other powders. I feel ya.

I'll paint the backside of it, so when it's open, it's dirt colors. I'll leave the front of it unpainted, so when the port door is closed - you KNOW... I will leave that part blank, and not paint it. Because.

I will leave that part blank, and not paint it. Because.

I like your style...

Solar Flare bit him in the ass in December, when I whooped his ass proper, and he didn't admit to it then. It's always a fun game.

That's pretty damn cool, Jim. Well done, brother.

Oh yeah...

Well, I continue to improve, anyway. If you remember, Matt got 3rd place last month, and he slipped to 15th this month...

That means your buffer is too long. Give up the recoil system specs. What's the model number of the JP SCS you used? What's your receiver extension internal depth?

Those two articles I linked above - they are interviews with Kevin Brittingham.

Your bolt is still pissing me off - just so you know. I'm no quitter, though. I'll beat that fuqr. One way or another.

We tend to "corrupt" people from time to time. It's really not our fault - just happens...

We do what we can. Just remember, every night is a different show, we don't usually repeat the same night's show - and remember to tip your server...

We try. We really do. We TRY to stay on topic. But, it's a HARD battle...

Initial Load Data:

If that's the real deal - we can make this ammo from .308 Win cases, and it'll fireform on the first shot... What say you? Think it'll work, brother?

@Patrad, you'll find that we thread-jack shiit on the regular here. Sorry this happened to you. But not. It's for the "greater good" at this point. Most topics around here usually end up this way...

Dion, @dpete - here's the newest update on 8.6BLK, from Kevin himself: https://www.arbuildjunkie.com/8-6-blackout-approaches-a-2022-update-with-qs-kevin-brittingham/

That's an AR15 (Armalite M15) rifle gas tube, brother. Same part number on Armalite's website, check it: https://www.armalite.com/SACItem.aspx?Item=EU0170&ReturnURL=/Armalite/Product-Category/M-15EA-15-Parts-Accessories/Upper-Receiver-Parts&Category=e81c716e-9c82-41b1-a76e-fb6815c75b21

Okay, here's 8.6 BLK compared to .308 Win. Here's .308 Win compared to 6.5 Creed - 6.5C on the left, .308 on the right: So, on this 8.6 BLK, they kicked that Creed neck WAY back to make this round. Can we run a .308 Win case through an 8.6 BLK sizer die, shorten the case, and give the .308 Win case that same taper as a 6.5C?... I dunno. I think we need to look at whether we can make 6.5C brass out of .308 Win cases. If we can - then we can make 8.6 BLK from .308 Win cases.