Im Dumb On What Kel-tec Talks About When They Say There Pf-9 Will Take +p Ammo But Not To Shoot Very Much Through It, Wat Is +p Ammo And Why????
+P means the ammo exceeds the standard pressure level for a given cartridge as defined by SAAMI (Sporting Arms Ammunition Manufacturers Institute).
See the Wikipedia article on the subject.
+P is a legitimate SAAMI spec for a few calibers, 9mm, 45ACP and .38 special being the most common.
There are a few manufacturers that (IMHO) are irresponsible with their loading and labeling, marking calibers (like .380) as "+P" even there's no such thing (from SAAMI standpoint).
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