• sp3tr4l@lemmy.zip
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    4 months ago

    Could keyholing of … seemingly this magnitude… be the result of basically laughably bad tolerances in internal barrel width, or perhaps the barrels are made of some kind of alloy that expands significantly from heat?

    I have only ever seen keyholing in western gun videos from basically burn downs… but even then after a barrel is nearing its end of life by manufacturer specs, its more common to get some kind of failure to feed, significantly decreased precision and only occasional keyholes.

    Maybe another possibility is similarly poor quality alloy of some kind used in the cartridge itself?

    Combination of all of these things?

    I remember seeing a fairly recent video of some kind of PLA MOUT type urban course… and you could see massive keyholing on targets that were like 5 to 10 meters away.

    The prevalence of it baffles me. Ive personally dealt with and seen misfires and jams of various kinds at ranges, but I’ve never even seen a keyhole occur in real life.