Actually, the Manlicher-Carcano is 6.5x52mm, not making it a .30 caliber, as stated in other posts. .30 caliber rifles typically are designated as 7.62mm x ?. Several examples of this are the 7.62x51mm (.308 NATO), 7.62x39mm (SKS, AK-47, etc), and the 7.62x54mm (Mosin-Nagant and Dragunov).
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