Nov 26, 2006 · Re: Polishing up an AR-15 Chamber brush research makes a dingleberry hone that fits the .223 chamber nicely, can mount it to your cordless drill. brownells or midway might even sell it, but you might see if you can see where the chamber is rough before going that far..just remember when polishing, oil oil oil Oil is your friend..and don't do any polishing which will bump up into the shoulder ...

Nov 20, 2010 · Flush out the lug / chamber / barrel and carrier group areas right after shooting while on the range. Grunge doesn't stick so bad if you catch it while its hot. Then really clean the rifle at home with a coated rod and chamber guide. At least pull a bore snake through it soaked just the first several inches with kroil, solvent, WD40. Pull ...

Jan 29, 2018 · The Wylde chamber is .002 bigger in the cartridge case area and has a longer throat. On the average the CLE chamber will shoot 23% smaller groups with out of the magazine ammo. The CLE match chamber will give better barrel life due to the shorter throat and gives slightly higher pressure.

Sep 16, 2022 · Have two sizing dies I set separately to match chamber and desired headspace. She is now learning some of the reloading steps and chamber checks her own ammo. 22N for my old barrel, 22N for the new barrel (both sized for about 0.002" head space), 22N Factory round about 0.005" headspace). I check each chamber for neck length with a borescope.

Aug 26, 2021 · I completed my 1st build of an AR-15 this year, and I have just begun to test fire it. It does fire. It does go BANG! But I can't get it to cycle automatically. I keep having to pull the charging handle to get it to cycle.

Aug 23, 2009 · I am about to make the plunge in buying a Compass Lake Engineering (CLE) chambered barrel for a AR-15 accuracy build. The problem is that I can't decide between the CLE match or the Wylde chamber. I see that CLE claims that their own CLE match chamber produces about 23% smaller groups than the...

Apr 20, 2011 · I soak this mop down with carburator cleaner, or brake cleaner, force it into the chamber as far as it will go, and simply twist it a few times in the chamber, holding the muzzle towards the floor to keep any excess liquid from running down into the stock bedding. Using a second dry mop made the same way dries the chamber and finishes the cleaning.

Oct 13, 2013 · 3.7 Chamber pressure. 3.7.1 Measurement by copper-crush cylinder.-The average chamber pressure of the sample cartridges, conditioned at 70° ± 2°F, shall not exceed 52,000 pounds per square inch (PSI). The average chamber pressure plus three standard deviations of chamber pressure shall not exceed 58,000 PSI.

Jan 7, 2009 · I have a new upper for my AR-15. It is failing to eject, the extractor is ripping thru the rim. Tried using the bolt and carrier from my old upper, same thing. Tried both bolts and carriers in my old upper works fine. Chamber looks fine no rough spots. Any ideas would be appreciated.

Apr 26, 2022 · Most measured at around 1.468" after firing in the BCM AR which is quite a bit longer than the cases fired in my Rem 700. Guessing that is because of the AR's 5.56 chamber. I thought I would try and chamber the empty resized PMC case in the Rem 700 just to make sure it would fit. I could slide the bolt forward, but couldn't rotate it closed?