Vista Outdoor · Flake
Herco
Medium burn rate flake powder.
- Manufacturer
- Alliant
- Grain shape
- Flake
- Burn rank
- #22
- Category
- Medium-Fast
- Temp sensitivity
- Moderate
- Application
- Pistol
- Origin
- USA
- Status
- Active
Burn-rate position
FastestSlowest
Typical cartridges
.44 Magnum, 12 Gauge, .38 Special, .45 ACP, .460 Rowland, .38 Super, 9mm Luger, 10mm Auto, 9x23mm Winchester, .44-40 Winchester, .30 Carbine, 20 Gauge, .357 Magnum, .41 Remington Magnum, .45 Colt, .40 S&W
By cartridge
.44 Magnum also used: Vihtavuori N320, Vihtavuori N340, RS36
.38 Special also used: No. 1, CSB1, BA10
.460 Rowland also used: Universal, HP-38, Longshot
.38 Super also used: Vihtavuori N320, N330, RS24
9mm Luger also used: No. 2, N310, Bull's-Eye
10mm Auto also used: Vihtavuori N320, IMR Hi-Skor 800X, CFE Pistol
9x23mm Winchester also used: Vihtavuori N340, Universal, N350
.44-40 Winchester also used: No. 2, Universal, HP-38
.30 Carbine also used: Universal, HS-6, Blue Dot
Similar burn rate
Supply & handling
- Availability (US)
- Common
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
Herco is a classic Alliant flake powder positioned between Unique and Blue Dot. Excellent for heavy 12-gauge field loads and .45 ACP at full pressure, plus .357 Mag and .38 Super at standard velocities. A traditional hunting shotgun powder that has been loaded for decades.