https://www.federalpremium.com/backcountry.html
Federal’s 7mm Backcountry is an entirely new high-performance,
all-range cartridge that reinvents ammunition as we know it. It not only
provides superior ballistics and terminal performance, it does so through
compact, shorter-barreled suppressed rifles.
The 7mm Backcountry cartridge achieves all of this through its patented Peak
Alloy case. Built of an advanced steel alloy, the next-generation, one-piece
case design allows higher velocities over modern brass case ammunition. And
because the cartridge is dimensionally smaller than its closest brass-case
counterparts, 7mm Backcountry achieves these ballistic advantages through
smaller rifles and with an extra round in the magazine of most platforms.
In developing 7mm Backcountry, Federal’s team of engineers set out to design
a cartridge that answers a market need that seemed unsolvable—magnum
velocity out of shorter barrels without increasing recoil. They did, but in the
process they produced true innovation, creating a new way to make rifle
ammunition faster, flatter shooting and more powerful.
Patented Peak Alloy case technology is fundamentally different than brass cases. Created in response to
U.S. military solicitations, it utilizes a proprietary steel alloy that includes other unique elements. This same
alloy is used in manufacturing safes, nuclear reactors and similar high-strength applications.
Peak Alloy allows Federal to safely increase chamber pressures far beyond the limits of brass case
ammunition, significantly increasing velocity and energy. With a stronger, more efficient case design in its arsenal of proprietary technologies, Federal can
harness the untapped reservoir of energy in all ammunition, paving the way for a whole new family of
high-performance cartridges. The innovative Peak Alloy case is also reloadable when following Federal’s lab-tested processes and data.
Suppressors are quicky gaining popularity within the hunting market. However, cartridges and rifles haven’t
kept pace with this trend. When shooters install an 8-inch suppressor on a 24-inch barrel, it results in a
platform that’s awkward and impractical. To counter this, many shooters are selecting rifles chambered in
cartridges like 7mm PRC with 20-inch barrels to make room for their suppressor. In the process, however,
they lose the magnum velocities, energy and trajectories their cartridge originally supplied.
With the new 7mm Backcountry cartridge, hunters get back magnum velocities through 20-inch barrels.
Due to its higher chamber pressures, a 7mm Backcountry 170-grain Terminal Ascent shot through a
24-inch barrel gives you a muzzle velocity of around 3150 fps, whereas a 7mm PRC with the same bullet
generates about 3000 fps. Through a 20-inch barrel, 7mm Backcountry shoots ~3000 fps while the
7 PRC is only ~2850 fps
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