Dubbed “Rifle, Caliber .30, Automatic, Browning, M1918,” one of the men who received the weapon was 2nd Lt. Val Browning, son of the new rifle’s designer. He quickly put it to good use.

$899; airventuri.com Semi-auto air rifles are a rarity, and big bore semis are just about unheard of. But Evanix has set out to change that with a .30 caliber pre-charged pneumatic air rifle that ...