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Hi Steve and welcome. .243 Win, 6.5 Creedmoor, .338 federal, .358 Winchester etc. Many listed here : https://wilsoncombat.com/long-guns/ar-10-calibers.html

The AR-10 is designed to fire full-sized 7.62x51 ammo, and the most common calibers include: 308 Winchester (7.62x51 NATO), .243 Win, 6.5 Creedmoor, .338 Federal, and .300 Win Mag.