Cartridge : 160 grain Hornady Evolution bullet (part # 82730). Firearm : Lever-actuated rifle with 20" barrel length. Calibration : All depths corrected (From 9.8cm @ 616ft/sec) Bullet impacted at 2216 ± 0.500 ft/sec Penetration was 17.5". Please note that the calibration information refers to the initial block of 16" depth. The stopper block was not calibrated. In any case, the initially-impacted block calibration was near-perfect... so the bullets performance in that medium is accurately represented. Average recovered diameter was 0.634"