Savage Arms 110 Timberline, Bolt Action Rifle, 7MM Backcountry, 20 Threaded Barrel, Realtree Excape, Synthetic Stock, 4 Rounds, 1 Magazine 58323 Federal's 7mm Backcountry is a high-performance cartridge that delivers superior long-range accuracy and magnum performance in compact rifles. Low temperatures. Dry air. Low pressures. Long shots. With the Savage 110 Timberline, they're all attainable.