Load data for 7 mm Backcountry + 170gr Barnes TTSX BT
704 suitable loads across 119 powder(s) for cartridge 7 mm Backcountry with 170gr Barnes TTSX BT bullet.
The most recommended powders for this combination are Alliant Power Pro 2000-MR, Alliant Reloder-17 and ReloadSwiss RS 60.
Based on SAAMI, the max. allowed case length is 2.417 in / 61.39 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 79,916 PSI / 5,510 bar.
Based on SAAMI, the max. allowed case length is 2.417 in / 61.39 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 79,916 PSI / 5,510 bar.
Load Specifications
ImperialMetric
Bullet:.284 | 170gr | TTSX BT
Cartridge:7 mm Backcountry load data
Case Length (L3):2.417" | 61.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.716" | 18.2 mm
Case Capacity:73 gow | 4.73 cm³
Primer Size:Large Rifle (LR)
Max. Pressure (SAAMI):79,916 psi | 5,510 bar
Barrel Length:20.0" | 508 mm
Min. Twist Rate:1:8.5
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