.300 RCM Ammo Prices

Picture Ruger and Hornady in a back room sawing down the .375 Ruger case with one deranged premise: full .300 Winchester Magnum violence out of a stubby 20-inch carbine you could carry up an Alaskan scree slope. The engineering is genuinely clever: a beltless case as fat as an H&H magnum's belt, more powder in less length and zero apologies. Factory loads ran 150, 165, and 180 grains, the 150s past 3,100 and the 180s advertised at 3,040 feet per second. Elk medicine from a rifle the length of your arm. But it stumbled into the short-magnum knife fight a decade late. The WSM crowd had already shouted across the earth and the RCM never caught up. Today Hornady is the sole source. It's loaded in rare runs. The standing advice in the RCM underground is buy brass and load your own. If loaded ammo surfaces it vanishes fast. Set alerts online to find it 20 seconds after it's listed. Fear and scarcity surround the whole ride.