bugman

That's a good looking rig. I would be proud to own that. Hope I can turn out something like that soon, that just runs like a sewing machine. Been working and studying on this build waaaay too much lately. The odd thing is though, I have really enjoyed it. The gun didn't work at all, until I found this forum. Felt good to bring it that far. Just need to smooth it out. And if I can't do that, I'll start again.

I hope you're wrong about that, but I wouldn't bet against you. It's been a frustrating project for sure--all the makings are there now, but it won't quite come together like I want it to. So close.

I'm not bitin' just growlin' a little bit! I'm not that bad a guy, although it probably seems that way by now. I'll try to keep it light and easy. I'm just not ready to junk her yet. Can't let go, seems like I'm so close to an awesome gun.

MAN, this guy is nothing BUT cheap little comments. Can we go back to talking about rifles?

Why would I go off on you? You haven't done anything but help me, so far.

Whoa, looks like I stepped in the yellow jacket nest this time, didn't I? Y'all settle down, I'm not throwin' shade. I came here for some serious help and advice, and have gotten exactly that from almost everybody. But I have a low tolerance for people wasting my time, as I'm sure each of you men does, and unforgiven went over his limit yesterday. I had to call him on it. Hopefully his ego has not been shattered and he can recover from it. I'm already over it. Now I'm off to do some push-ups, as sketch recommended. Hope y'all have a good day.

Got it. I'll shoot him a message. Thanks!

Damn it all, now you have annoyed me. Your badge says "Specialist." What exactly is your specialty, running your mouth? If you don't have anything constructive to say, I wish you would just pipe down. That way if somebody posts some actual help it won't get lost in your inane ramblings. By the way, a butt pad? A BUTT PAD? My 5-year-old son suggested the same thing. Can he be a "Specialist" too?

I thought that might be the case. Any idea what it should be? Am I anywhere close?

Nothing wrong with the shoulders, but there will be if I keep shooting this gun. I have bolt rifles in 308, 30-06, 300WM, you name it. Any and all of those are tamer than this beast. I just don't understand. I think we can say the recoil system is nailed. I've got a receiver extension with the proper depth, and the most mass and stiffest spring they make. The problem must be elsewhere.

Got another 308 build that I started and couldn't finish, or couldn't get right (yet). I think I've got most of the low-hanging fruit on this one, but I'm missing something, that's for sure. Here's the waterboarding info: Armalite AR10 recoil system? NO Buffer weight: 5.36 oz Buffer length: 5.296" Extension buffer tube internal depth: 9-5/8" measured (Aero) Buffer spring: Armalite EA-1095 (13-5/8" length, 34 coils) Gas system length: rifle Gas tube length: 15-1/8" Photo in Magwell Photo of bolt face BCG clearance at ears: PLENTY / BCG clearance at bolt stop: 0.10" Gas journal diameter: 0.750" / Gas port diameter: #48 drill bit GOES (.076), #47 DOES NOT GO (.078) Description of malfunction: weak ejection (like less than a foot, but the brass is getting out), and bolt never holds open on last round (multiple known-working magazines tested) Additional information: Criterion barrel M118LR, 18" rifle gas, 1-10T, chrome lined Lantac Enhanced BCG with Aero Precision bolt (I have read in this forum that people have had issues with the Aero Precision bolt catch being too short for this carrier, but not sure if that's what is going on here) Shooting Hornady #80971 Black 308 Win 168 Gr A-Max What do y'all think about it? Greatly appreciate any help.

That's worth a shot, too.

I'm using the OSS 7.62 flow-through suppressor. I don't notice any big difference between when it's on and when it's off (other than the volume maybe). I think I'm probably on the edge of having some function problems from carrier speed already, so I wonder what would happen if I put a baffle can on the end. I would test this out and report back, but it's already in the mail.

Just a quick update on this gun, in case anybody is still interested. I felt like I had thrown too much money at this thing to just give up and let it continue to beat up my shoulder for all time. So I did a few more things: 1) I ordered an Armalite receiver extension with the correct spec (7-5/8" depth), instead of using quarters inside that other thing I bought. The 3 quarters worked, but I just don't like doing that. I know that makes me weird. Anyway, I believe that solves any possible problem with my recoil system, since I'm already running the heaviest buffer and stiffest spring I can find. 2) I contacted Sprinco and talked to Alan Dugger, mostly just to make sure he wasn't aware of any other spring options that might work. He said Orange was the stiffest on the market, but he did suggest looking into a "configurable" gas tube, called EZTUNE from Black River Tactical. (Here's a link: https://blackrivertactical.com/WP/BRT-EZTUNE-Gas-Tube-Configurable-Midlength-p103167236) . I had no idea that a product like this even existed, but I guess it is supposed to perform the same gas-reduction function as an adjustable gas block, but without the hassle of having to adjust it, or the likelihood that it will eventually seize up. Do any of y'all have knowledge or experience with this? 3) I decided to hold off on the EZTUNE, and instead I called Criterion to ask if there was some mistake with my gas port size. I talked to Michael Ross, and he confirmed that the port size was indeed supposed to be in the range I gave, but could not understand the recoil and ejection problem either. He sent me a shipping label to send my barrel and upper (BCG and all) for him to look at. Not sure what I can expect Criterion to do about it....if the problem is that the port is too large, I'm don't know what can be done to fix that, other than possibly a new barrel. Anyway, I sent it off yesterday, and will update when I hear back. Hope y'all are doing well.

Thanks. I haven't had a chance to try out the third US quarter yet, but I'll keep working with this and hopefully find a good combination of coins.