Survival Ammunition: 6x45mm

Like its larger brother the .308 Winchester, the 5.56x45mm/.223 Remington cartridge has been used by wildcatters since its inception to create new and interesting cartridges. Since the 5.56 is already a .22-caliber cartridge, necking it down hasn’t really been feasible until recently. But necking it up to take larger-caliber bullets has been practiced for a […]

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