barrel nut torque accuracy

I read somewhere (stay up late reading tech and forget where if I don't bookmark it!) No need to get gorilla with torque. Moderator. … If a barrel won't index, I install a different barrel nut. Showing the proper way to torque a barrel nut onto an AR-15 upper receiver using the B.E.V. Believe it or not, it's that combo that is shooting very well out of my current set-up. I'm not sure if this may be my issue, but it's the next thing on my list of things to check/address. Horizontal? (as usual) I know the range is 30 to 80 ft/lbs on the torque, but 30 sounds too low to me, I would rather be somewhere between 40 and 70. He says that you can usually get by on a .223 with a semi-tight nut, where the other guns will show horizontal dispersion. that you get better accuracy with a higher torque value on your barrel nut. I just want to exhaust all options before taking that step. #Can you click Ar Barrel Nut Torque Setting is best in online store. I will try the above mentioned tweaks to see if that helps. (Technically, it’s “pounds-inch,” but we won’t go down that particular rabbit hole right now.) Unless it’s a left hand twist barrel you can torque shouldered prefits hand tight. What do you guys KNOW? And, anybody could suggest/recommend a a suitable torque wrench for that? Also, remember many, many, many other factors come into play when it comes to accuracy. Full stop. Concur with a better barrel, as others have noted. No clue if higher torque gives better accuracy. If your weapon runs alot of ammo then you may run into heat related problems. No offense intended at all... but ... if you have fired over a few hundred rounds of .224 Valkyrie trying to make your BCA barrel shoot... that means "X" dollars spent .. or wasted trying to make that mediocre barrel shoot . Hang onto that bitch. It may not display this or other websites correctly. The barrel nut actually stretches the upper's threads, thus applying strong clamping force on the barrel extension. OTOH, it just occurred to me, that the Remington M700 and clones thereof, have a separate recoil lug that is installed between the barrel and the receiver, similar to the shims on an AR barrel nut, without apparent accuracy issues. For a better experience, please enable JavaScript in your browser before proceeding. Shims can be used individually or combined to get the desired thickness. I recommend that you check the latest price before buying. Joined Sep 15, 2009 Messages 12,172 Likes 3,042 Location NH. #If you want Barrel Nut Torque Ar 15 Barrel Nut Torque Ar 15 BY Barrel Nut Torque Ar 15 in Articles #If you want This is perfect, some scratchy molding issues and offend imperfections here and there but for a clone of a Fab defense addition to be this well made and sturdy for approximately half the price is insanely good value. You must log in or register to reply here. YMMV, and I am sure you have your own arguments. Headspace, cartridge, etc does. Thought about even possibly trying Tubb's bore conditioning bullets before pulling the barrel. I would not be happy with a barrel nut torqued to less than 60 ft-lb. Thanks for the correction. We will need more info to work on. The stress on the upper from the barrel nut is in-line with the barrel and should not cause any issues. Thermal-fit the barrel into the upper, and torque the barrel nut to 60-70#, and G2G. Using quality barrels, both ways (remage/barrel nut & shouldered) are as accurate as whatever the potential of your rifle is. But the upper itself has no direct impact on overall accuracy. My issue is, I have tried numerous loads that others have had good success with, but they're not working so well in my rifle. I read somewhere (stay up late reading tech and forget where if I don't bookmark it!) JavaScript is disabled. For ease of installation the barrel nut is slightly more complicated but it is still quite easy. JavaScript is disabled. I have loaded over 6 million rounds in the last 5 years and STILL have not seen it all! Are you shooting your rifle like an AR or like a bolt gun? Possibly the most importantaspect of your rifle is the barrel. I've been working with a 224 valkyrie that I put together, partially. and then torqued to the final value not to exceed 80 ft-lbs. I have watched the groups shrink from the initial rounds fired, but the loads most others are having success with just don't seem to suit my rifle. The only time I've had a POI shift with barrel nut torque was before I trued the receiver face of one of my uppers. I was feeling lazy and didn't want to look up the book values. Tighter torque may be used to set a barrel for accuracy to limit upper reciever to barrel flux because these guns fire fewer and further spaced shots where heat issues are taken care by thicker barrels and more recovery time and reqire tighter fitment for accuracy. is not in any way affiliated with. A forum community dedicated to all 1911 firearm owners and enthusiasts. We've more info about Detail, Specification, Customer Reviews and Comparison Price. With the AR-10 and larger calibers in the AR-15, we have seen a lean towards higher torque values being preferred. They flat out hammer with the 80 eld’s and H4895. Thanks. At a quick glance, installing an AR-15 barrel doesn't seem hard. There are no accidents; only ignorance, mechanical failure, and acts of God! I torque to the low end, 35 to 40 ft lbs. Witchcraft, but I can't wait to get on the street tomorrow to share this electric BS. jasons Moderator. There’s not a big difference, it’s pretty straightforward overall. 75gr eldm with tac and cfe, 80gr eldm with varget and H4895 (the best load so far), and 88gr with 8208 xbr, and cfe. I take it as a challenge to see if I can make this one work. Me, I've always used the proper wrench tightened by hand to about 60 ft lbs (one hand at 1 ft with lean weight) and a tap with a small hammer. Getting the barrel and upper receiver mated and getting the barrel nut ready for torquing using the B.E.V. Toss that BCA and just buy a Rainier Ultramatch. 35 ft lbs of torque is plenty. I am happy with the 80gr eldm/H4895 load that I have, but I haven't hit on a good 88gr load yet. 8 0 0. A recent attempt using an AR Stoner free float rail and supplied barrel nut ended with it only being able to index the gas tube at 30 ft/lbs of torque, anything more and the tube wouldn't go in. If you can mount a scope and zero it, barrel nut torque is a non-issue. Out of probably 250-300 rounds fired, with 3 different weights of bullets, 6 different powders, 3 different primers, I've had 2, 4-shot groups shoot sub moa. One of the AMU armorers did a lot of experimenting with barrel nut torque value and found that with heavier barrels in the AR-15, they required less torque for maximum accuracy, whereas lighter barrels required more torque. Beyond rifle twist, barrel length, and contour, the thing that shooters don’t take into consideration is the barrel concentricity and how well the rifling is cut. Compared to things like how close the projectile seats to the lands, powder type and measure, projectile design, barrel design and workmanship, things like that; barrel nut torque is a small percentage of the equation. The barrel nut torque limits and the precision of alignment are areas I’ve seen shooters obsess over—to the point of spending an entire afternoon doing nothing but this. 379 Posts . Vertical? What parts where used, who built the upper and tell us more about the loads? To add to that on a barrel nut setup the nut takes the beating, you put the barrel in a vise and loosen or tighten the barrel nut as needed easy as pie. Minimal torque (about 25ft lb) produced one POI, torque on the high end of acceptable (40 ft lb) produced another POI about 3" away. The only time you're going to see accuracy degradation in relationship to barrel torque is if the receiver face is not square, It also depends on the type of receiver too. that you get better accuracy with a higher torque value on your barrel nut.

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