Cartridge : Handloaded .32NAA, 90gr Sierra JHC Firearm : Locked-breach test barrel with 2.75" barrel length. Calibration : 9.6 ± 0.05cm and 607 ± 0.500 ft/sec impact velocity. Shot 1 impacted at 933 ± 0.500 ft/sec, penetrated 16.0 ± 0.031" + and was recovered at 0.332 ± 0.0005" average diameter. Charge was 2.6 grains of Vihtavouri 310 with Winchester SPP. Shot 2 impacted at 940 ± 0.500 ft/sec, penetrated 15.3 ± 0.031" and was recovered at 0.400 ± 0.0005" average diameter. Charge was 2.7 grains of Vihtavouri 310 with Winchester SPP. Shot 3 impacted at 962 ± 0.500 ft/sec, penetrated 13.1 ± 0.031" and was recovered at 0.404 ± 0.0005" average diameter. Charge was 2.8 grains of Vihtavouri 310 with Winchester SPP. Track is outlined in blue on photo. Shot 4 impacted at 978 ± 0.500 ft/sec, penetrated 12.5 ± 0.031" and was recovered at 0.452 ± 0.0005" average diameter. Charge was 2.9 grains of Vihtavouri 310 with Winchester SPP. Track is outlined in yellow on photo. Shot 5 was a denim-faced block, bullet impacted at 977 ± 0.500 ft/sec, penetrated 14.3 ± 0.031" and was recovered at 0.326 ± 0.0005" average diameter. Charge was 2.9 grains of Vihtavouri 310 with Winchester SPP.