Load data for .20 Practical + 39gr Speer TNT
Based on Wildcat, the max. allowed case length is 1.760 in / 44.70 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 55,000 PSI / 3,792 bar.
Based on Wildcat, the max. allowed case length is 1.760 in / 44.70 mm, the max. cartridge length is 2.260 in / 57.40 mm, and the max. allowed pressure is 55,000 PSI / 3,792 bar.
Load Specifications
ImperialMetric
Bullet:.204 | 39gr | TNT
Cartridge:.20 Practical load data
Case Length (L3):1.759" | 44.7 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.258" | 6.6 mm
Case Capacity:30 gow | 1.94 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (Wildcat):55,000 psi | 3,792 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:1:9.0
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