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Originally Posted by Cyclops
We were getting failure to chamber/seat the round fully malfunctions. At the time it was explained to me by an 18B we had near our FOB that this was due to carbon build up in the chamber caused by the "overly corrosive ammo we were firing". I took his word for it as I didn't have much experience with the 107. You guys seem to be in aggreement that M8 anf Mod 211 mod 0 isn't corrosive so I either mis understood what he told me or he was wrong. That being said once I gave the chamber a little more TLC with some Sweet's it seemed to not happen as often. Thanks for the knowledge guys.
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There are some great .50 chamber brushes which are essentially a hard handle, like a screwdriver, connected to a piece of heavy cable with a BIG brush on the end. They were originally made for shotgun shooters, but the 12 gauge brush works well in .50 chambers as well. I can pull my bolt and clean the chamber of powder fouling in less time than it took to type this. They are not particularly expensive either. I would recommend that your unit pick some up.
The brushes are listed in the Brownell's catalog and are on the web site. If your 18Bs or armorers do not have the Brownell's catalog, I highly recommend that you get them. IIRC, quite a few teams use them for pre-deployment purchases.
Careful with the Sweet's, you leave it in more than 15 minutes, it is corrosive and is eating metal.
Good luck and happy hunting!
TR
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"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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