By the ocean?
That's just what he told me the ranch he lives on has a seagull problem. He's like 80 years old so he might be shooting chickens for all I know.
Screaming Deals on Armalite Barrels
- Thread starter JS8588
- Start date
That's just what he told me the ranch he lives on has a seagull problem. He's like 80 years old so he might be shooting chickens for all I know.
Another update on the 11.5 Armalite. I went to a 100 yard range today with more GGG M193 and some AAC 77gr OTM and a chronograph.
Unfortunately, I didnt think about putting a bigger scope on it, so all shooting was done with the TA11 I had on top of it.
I thought the chrono numbers looked pretty good. I used 10 shot strings.
M193 - 2763 vel. 16.5 SD 59.9 ES
AAC 77gr - 2282 vel. 17.7 SD 43.3 ES
Neither of the types of ammo I used were match grade by any means, but they were pretty consistent.
Groups with the M193 ran in the 2 to 2.5 MOA range. At least I know from yesterday that it shoots well enough to put hits on reduced size IPSC targets at 400.
The AAC 77gr shot into the MOAish range. MOA give or take. This is the same result that I get out of my 16" Criterion Hybrid barrel, so Im happy with that. I just wish I got a bit more velocity out of it. I think this lot of AAC was underpowered.
I was running the gas block with the .066 gas port and the AAC failed to lock back on the last round. I put the block with the .070 port back on when I got home, just to be sure.
Unfortunately, I didnt think about putting a bigger scope on it, so all shooting was done with the TA11 I had on top of it.
I thought the chrono numbers looked pretty good. I used 10 shot strings.
M193 - 2763 vel. 16.5 SD 59.9 ES
AAC 77gr - 2282 vel. 17.7 SD 43.3 ES
Neither of the types of ammo I used were match grade by any means, but they were pretty consistent.
Groups with the M193 ran in the 2 to 2.5 MOA range. At least I know from yesterday that it shoots well enough to put hits on reduced size IPSC targets at 400.
The AAC 77gr shot into the MOAish range. MOA give or take. This is the same result that I get out of my 16" Criterion Hybrid barrel, so Im happy with that. I just wish I got a bit more velocity out of it. I think this lot of AAC was underpowered.
I was running the gas block with the .066 gas port and the AAC failed to lock back on the last round. I put the block with the .070 port back on when I got home, just to be sure.
The whole thing with the 1/2x28 threads on a heavy barrel has always been something that bothered me. I've heard the notion of mitigating this with a muzzle device. What also worries me is overtightening the muzzle device and I dont think I've ever found a definitive torque spec on muzzle devices. If it matters, I always time my muzzle devices with shims.
As for controlling gas, we'll have to agree to disagree regarding using springs to affect closed bolt lock time. Nevertheless, I do agree that controlling gas flow is the way to go. Although I'm trying to get away from using "controls", my chosen method thus far has been riflespeed gas blocks. I think they truly are the best thing going.
Yeah, after learning about how the AMU went through a lot of testing with muzzle device effects on precision, Iām a fan of low or no torque using shims and Rocksett on muzzle devices. Adding counteractive axial force via torque on threads to the smaller diameter muzzle doesnāt make much sense to me. In one direction, we have force applied to the shoulder from the back of the device compressing against shims, and in the other direction, we have threads inside the device pulling forward on the muzzle thread peaks.
I like a precision-threaded muzzle by an OCD Gen X gunsmith/machinist with decades behind a lathe, or an older semi-autistic millennial who was trained by an OCD Boomer or Gen X machinist on how to do thread jobs.
For cyclic rate, I use a combo of metering the gas, with the extra power spring providing more return-to-battery energy for positive feeding and bolt closure. Buffer weights are really meant for countering carrier-bounce on different barrel weights on select-fire guns.
Proper or extra power action springs help ensure the bolt always goes into battery when running suppressed too, due to changes in coefficient of friction with fouling in the action.
Try it with Black Arc NAS3 69gr TMK. Should do between 2719-2818fps from 11.5"
Black Arc 62gr TTSX would be a good barrier-blind round too. That should do between 2837-2936fps from 11.5"
What can are you putting on it?
Ok, yes. That's what I do and use heavy springs for.
As for muzzle devices, I do a little trick that I've gotten a feel for that results in about 20 ft-lbs, pretty consistently. When Im being anal, I'll put the torque wrench on it.
I've heard of Black Arc ammo. Their 77s scream out of the barrel, from what Ive seen in the videos by xring. Gotta get me some of that. It shot pretty good too.
Man... I've been feeling pretty rotten about a muzzle device I put on a little while back... I would almost hate to even admit to the community what I did... But I got into a frenzy... And I wasn't listening to reason within myself... I previously struggled with this muzzle device... And no matter what combination I tried I couldn't get it right... Well I finally found a decent combination, but after I put rocksett on it, I couldn't get the same time out of it, so I up'd the torque by 1 lb until I did... By the numbers, it is over torqued... I haven't had a chance to have it out yet to see if it's actually had an effect... But I'm not feeling that great about it...
I did put a jag down the barrel with a heavy patch... I couldn't feel any constriction .. but would you really feel that? I don't know...
The device is a 5/8-24 Rearden R2S/ ht, on a KAK 'mr. Blonde' 9" 300 blk (stainless) with Griffin shims.
I reside in Idaho and have regular flocks of Seagulls as well as Pelicans set down at the two rivers convergence . Have damn near every winged creature zip by or lite here . Raptors species well into double digits up the wazoo ,water fowl too many to even name and also Sand Hill Cranes ( Prime Rib of the air waves ) . Great Salt Basin runs through Nevada ,Utah and Idaho ,the old boy isn't shooting chickens
Headshot a pdog today at 143 yards with Armalite barrel carbine. Has a 2-7x Nikon on it and seems to shoot everything from 40gr to 77gr into about 1.5" at 100 right now and cycles everything I have tried in it. I'm pretty sure my optic and myself are the limiting factor on this thing. I'll keep 52gr match hollow points handy with it for now.
I've got a rise trigger side by side with at timney there's not much functional difference
What torque spec did you use? The upper end of the torque specs that I've seen is 30 ft-lbs. If your target was 30 and you went to 31, I don't think I'd worry about it.
Well. Like I said... I hate to even say it out loud... But I'll air my mistakes... I went 41 pounds. I had gotten worked up into such a frenzy... I just wasn't seeing straight. I do remember thinking, well... I've often seen 30 ft lb +/-5 lbs... So what's wrong with 36lbs? That didn't work... Then I went to 37, and then 38, and so on... I do realize that the plus or minus is more or less to account for deviations in the tool...or position... And so that's what makes it so bad...is that I know better...
I was tired of messing with it...nothing was seeming to work.
What's crazy is, I had it timed perfectly, and the rocksett changed the relation that much... The threads were clean and dry...
I haven't taken it out yet to see.
Man, I don't know. That's over torqued by more than 30%. That's way into barrel nut torque territory. I think I'd feel compelled to redo that.
Yeah, putting anything on the threads pretty much acts as a lubricant, but a little too loose is better than way too tight.
Just to be sure you're aware ... Rocksett isn't permanent. If you're lucky, a good whack with a plastic hammer will break the bond. At worst, an overnight soak in water will do it.
If you happen to have a suppressor alignment jig, that will confirm whether there's trouble.
Don't feel bad dude. I've done some pretty stupid stuff over the years. How about pinning and welding a muzzle device only to realize that the gas block wasn't installed yet? Yeah, that one sported a hinged, clamp on gas block until I decided to change the handguard. That's what I got for deciding that 3:00 in the morning because I couldn't sleep was a good time to do that stuff.
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Maybe you squished your shims
That muzzle device looks like it would be fine with a crush washer
I've never torqued against shims when installing a muzzle brake it was always get it 99% where I wanted, then unscrew it and add a drop of rocksett and then screw it back down and a little oomph from a wrench
Or you can buy a bag of crush washers and mix/match until you find the one you want
Also on a kak pistol barrel I wouldn't worry about it at all just go shoot it
Yeah... Ive taken off muzzle devices just by using a moderate amount of torque... Yeah I may get a an alignment rod. I was kind of thinking about waiting until I got my welcome package from Griffin armament.. because it contains a rod... But, I may get one...if there's no trouble, I'm leaving it.
Yeah... I believe I got this on a deep discount...it normally runs 274... I think I paid much less... This is supposedly a very accurate barrel... But .. like you said, it's pistol barrel... I have it mounted in a left charging Gibbz receiver set. I did think using a crush washer to begin with...when I started having trouble finding the right combo of shims. But. I think I'll try a rod before I shoot it... It be nice to know.
AR-15 discounts is running a special on vortex RZR 1-6x24 gen2-e... Might be good for some of these new barrels. They vmr.moa and vmr mrad are part of the special. I got one myself
Well, I just got back from the range again and shot the snot out of the 11.5 Armalite barrel. Man that thing shoots. I just ordered another one just to have.
I did wind up going with a .070 gas port on the barrel and it's much better behaved. For those that missed it, I'm using YHM suppressor gas blocks and drilling them out. At $18, it's a lot cheaper than a gas tube and arguably more reliable than an adjustable block.
I did wind up going with a .070 gas port on the barrel and it's much better behaved. For those that missed it, I'm using YHM suppressor gas blocks and drilling them out. At $18, it's a lot cheaper than a gas tube and arguably more reliable than an adjustable block.
I love the Hide. Sub $100 barrel. $1000 scope. Nothing wrong with that. That's the way of this forum.
I'll be picking up one of the Arken LH-6 1-6s once @gr8fuldoug gets them back in stock and at least one of the new Bushnell R5 3-9s.
Well you're right of course... But we have to remember the age that we're living in... Yeah maybe 60 years ago, maybe not... But in this day and age a $100 barrel very well can be just as accurate as a $300 barrel... Or at least close... I think someone else on here was talking about paying for probability... So... You know I can go get a 14.5 in Colt new-old stock right now for $150...and with a lo-pro gas block in the deal....And it be plenty of accurate for what it's meant to be.. and most people won't think twice about putting a $850 aim point on top of one.... But yeah I know, I get what you're saying, it's silly... Also, I think this might be my first non-doug optic purchase in many years. So don't tell him.
Almost all barrels are sub 100$ barrels we just don't know it because of how production, distribution, retail pricing works. The one exception might be small custom makers who do cut rifling, wildcat calibers, custom one-off orders because that takes a lot longer and requires more quality control.
These are $259+ chrome-lined barrels from ArmaLite being sold off for pennies though.
Best deal Iāve seen in a long time. If it was some trash unknown steel nitrided special from the low-ball usual suspects, Iād agree, but this is really a great steal.
Yeah, I sure wish I had a reason to buy one... At 59$, why not.. but I've gotten a mental block against stuff that I don't actually need... I do have a PILE of parts that I acquired, but then changed my mind on....and now sit...
I don't mind saying, that over the course of the last 12 months, I've burned through 88% of my liquid savings...so, I've got to get it in my head to start making smarter purchases. Now, a huge part of that was in recovering from the divorce... but even still, I need to make purchases that are gonna count for something...in the here n now.
Holy shit dude you need an intervention lol..but apt screen name.
