Barrett Firearms 50 BMG M33 Ball 661 Grain Ammo 5 Rds 0.5 Boxes - Rifle Ammunition at GunBroker.com : 959834513
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12.7 x 99 mm cartridge M33 with bullet type ball (FMJ)- 4 cartridges and 12.7 x 99 mm cartridge M17 with bullet type Tracer -1 cartridge – Arcon partners ltd
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150 Round Can - Lake City 50 BMG 660 Grain M33 Ball Ammo Loose in M2A1 Canister - LC-M33-150AC | SGAmmo.com
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Magtech Ammunition 50 CAL BMG AMMUNITION - M33 BALL, BMG, FMJ, - Other Ammunition at GunBroker.com : 956920222
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