Load data for 9 x 21 + 135gr H&N KS HS
319 suitable loads across 52 powder(s) for cartridge 9 x 21 with 135gr H&N KS HS bullet.
The most recommended powders for this combination are ReloadSwiss RS 20, Alliant UNIQUE and Vihtavuori N340.
Based on C.I.P., the max. allowed case length is 0.833 in / 21.15 mm, the max. cartridge length is 1.171 in / 29.75 mm, and the max. allowed pressure is 34,084 PSI / 2,350 bar.

Based on C.I.P., the max. allowed case length is 0.833 in / 21.15 mm, the max. cartridge length is 1.171 in / 29.75 mm, and the max. allowed pressure is 34,084 PSI / 2,350 bar.

Load Specifications
ImperialMetric
Bullet:.356 | 135gr | KS HS
Cartridge:9 x 21 load data
Case Length (L3):0.830" | 21.1 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.257" | 6.5 mm
Case Capacity:15.5 gow | 1.00 cm³
Primer Size:Small Pistol (SP)
Max. Pressure (C.I.P.):34,084 psi | 2,350 bar
Barrel Length:4.5" | 114 mm
Min. Twist Rate:Stabilizes in any common twist
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