So, I put my Grendel upper on my 5.56 lower. It seams to work just fine with hornady 123 sst, but when using the cheap wolf rounds, it makes a horrible spring noise. It seams to feed and fire fine, but I wasn't sure whether or not it was something I should make adjustments to. Should I just steer clear of wolf and stick with better ammo? I mainly just got the cheap stuff to play around with since it's mainly a hunting rig. Thoughts?
Buffer spring concern
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The recoil spring noise in rifle-length tubes is typical AR15.
You can polish your tube or lube it and the spring lightly, or get a JP SCS if it bothers you.
I never hear it since most of my rifles have carbine RETs. I have one AR15 retro with a rifle-length tube that I rarely shoot.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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It's very normal for the rifle-length RET (receiver Extension Tube) on the AR15.
We call it the "sproing".NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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I've seen guys in 3-Gun who polish the inside of their RET with a drill and a cloth using JB bore paste, stripping the dry film lube meant to suspend lubricant per the Mil-Std, if the tube even had it. Most tubes on the market are not made anywhere near the TDP.
They would then coat the recoil spring in some type of grease. Not sure how it would affect the system in the long run, but it slicked them up for sure.NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
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