If .50 BMG are so effective at bringing down jets, then why don't any militaries use them as such?
20 mm autocannons are on the small side for AAA. Nobody in their right mind is going to use a 12.7 mm semi-auto rifle for that sort of work.
20 mm autocannons are on the small side for AAA. Nobody in their right mind is going to use a 12.7 mm semi-auto rifle for that sort of work.
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