They said that about 300BO, 6.8, 6.5, etc too. Oh and 7.62x39 back when it was a weird commie caliber nobody could get ahold of easily too. Now they're all everywhere and fairly common. I predict 30 Super Carry will catch on, primarily because of lighter weight and higher mag capacity. A 30 cal pistol is nothing new. The M1895 revolver, multiple different countries pistols in Tokarev, broomhandle Mauser, 30 Carbine revolvers, etc30 Stupid.
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