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Originally Posted by Martin
Regarding M4 double feeding, here's the FM solution:For example, a bolt override is when a cartridge has wedged itself between the bolt and charging handle. The best way to correct this problem is by- - Ensuring the charging handle is pushed forward and locked in place.
- Securing the rifle and pulling the bolt to the rear until the bolt seats completely into the buffer well.
- Turning the rifle upright and allowing the overridden cartridge to fall out.
Martin |
Martin:
Roger that -- 'bolt override'. This technique was written by folks who work at Rock Island. I have great respect for some of them. The guy who wrote this procedure I may have difficulty with as it doesn't represent reality.
Good luck pulling the bolt to the rear and no, most of the time the spent cartridge won't fall out. Most of the time you will spend about ten minutes prying the spent cartridge with leatherman or perhaps a screw driver.
I have had guys stand the errant carbine on its stock and hold the barrel with great force as I slam my boot down on the charging handle repeatedly until I can get the bolt back far enough to ensure better prying of the brass.
I can't say I have seen one instance of this where the brass just comes out.
I have had an aversion to the issued carbines for close to fifteen years due to such experiences. My view is changing though as I have seen more and more new carbines actually function properly. However, I still don't trust them as much as I would a service length upper. Never found the barrel length to be as significant as stock length on issued M-16 series of weapons in terms of speed. Have always found that the issued 20 inch barrel will outperform the carbine barrel hands down and it seems there are far less 'bolt overides' and other problems with the service length uppers than the carbines.
Gene