98Z5V

Based on the info, if it was mine, I wouldn't look any further into the recoil system then. There's nothing wrong with that combo you've got. It runs. Time to look at gas delivery, and rule out possible issues there.

Is that the internal depth of the receiver extension? Looks like the Sprinco orange spring - not just because of the paint. Length,coil count and wire diameter are right for it. Let's get @washguy to spit out some details on that. Internal depth on that receiver extension has to be 7.000". Not a little under or a little over...

1000+ yards for this cartridge.

When I ultimately get off my a$s and build mine, it'll be an 18" 1:8" twist midlength gas barrel, with two primary projectiles: Barnes 120gr TSX BT and the Hornady 140gr SST. A 20" barrel wouldn't be bad. From what I've read, the very best in long range accuracy is from the 22" barrel.

This might help, as well: https://www.google.com/#q=RRA+LAR8+free+float https://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_ID=205 http://www.calguns.net/calgunforum/showthread.php?t=375718

Pics will help... of that handguard you bought...

Looks like the bolt was rotating as designed, during rearward travel, and contacted that round. The distance between scratches supports that - match the bolt lugs up to the distance between those scratches and see if that's the deal. That piece of brass with the dent directly on the shoulder? I'd get rid of that one. I'll normally see dents in 5.56 brass - and just chamber them and shoot it - let the "fire-forming" take that dent right out. I wouldn't do that with the one you're showing...

If that was truly the case, Mark LaRue wouldn't have invested the time or R&D to make a complete LaRue rifle out of this cartridge. Honestly, if it sucked on a gas gun, you wouldn't be able to hop on that website and buy one right now. It's already done.

^^^ That's good - eliminates the bolt catch. The AP bolt catch is slightly different than all the others out there.

^^^Yes. The OP in that thread is ARTrooper - same guy from here. Looks like he joined there and made that post on the same day he joined here. We should ask him how this has gone. navistar - you know my input on it, on the .260. @ARTrooper, this build go? Any issues?

Gas port diameter as well - but I kinda doubt that on a BA barrel. What bolt catch did you use in this build?

This just came up in the last couple weeks - it's really the only one we've dealt with so far.

Why, yes - that would be excellent! Fit and Finish, lens clarity, how you like the reticle - groups, box test, ease of adjustments, accuracy of adjustments! That would be wonderful, brother! That would make a good review, but I don't think we've had one that detailed before, that originated with The Rule.

This doesn't look problematic, at all - it's all the same things you have to know/do/buy/tweak to build a fully functioning .308AR in .308 Win.

Make sure you take measurements, as well. Those are more important than pic. What kind of receiver extension? Fixed stock or collapsible stock, rifle or carbine... Buffer length. Buufer spring relaxed length. Number of coils on the buffer spring. Wire diameter of buffer spring wire, if possible. This sounds like a buffer that's not right...

I can laugh about it now - because I lived through that ordeal...

Unreal - that AR owner needs buttstroked to the head with his own weapon. I can't FATHOM that you buy a rifle, and the lower says "multi" so you think you can SHOOT different calibers...

Taran Butler - not even using his sights, and hip shooting... I certainly wouldn't wanna fuk with him in a gunfight...

I got banned from there for ONE post. ONE. People were looking for inexpensive lowers, and I suggested Spike's Tactical. BAN. Right away. They even deleted my ONE post. This was about the 2010-ish timeframe when everybody was jumping in Spike's ass about the Mil-Spec advertising, and Spike's produced ALL their certification documents on ALL their stuff... I could go on and on... Here's someone that obviously doesn't know what they're doing - can't possibly have merit... Here's who the guy is - Baret Fawbush. He's the Senior Minister of Old Union Christian Church.

Yep, I've got one - works like a charm, too.

^^^ That Fed AutoMatch is good stuff.

Very well could be the AE ammo with the FC headstamp. I know I don't buy it. The damn stuff just winds up in my bucket... MikeDaddy... I'll look that die up, ss - is it the same deal as the Primer Pocket Swager 2?

That's the red Loc-Tite 271 you're talking about. 242 is the blue stuff. Both are for securing fasteners. There's so damn many types of Loc-Tite it's not even funny.