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Old October 21, 2012, 06:36 PM   #17
1911Tuner
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Join Date: May 17, 2004
Location: NC Piedmont/Foothills
Posts: 666
re:

The technical term for a live round stovepipe is Bolt Over Base Misfeed. The most common cause is a weak magazine spring, with short recoil coming a close second. Weak ammunition can do it, but it would have to be pretty wimpy.

Grossly overspringing the slide can also lead to a BOB failure.

A severe BOB misfeed is often referred to as a "Rideover" feed. This one usually jams the gun up solidly, often locking the magazine up in the well.
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