Hodgdon Powder Company · Ball
780
Very slow ball powder for large magnum rifle cases.
- Manufacturer
- Winchester
- Grain shape
- Ball
- Burn rank
- #75
- Category
- Medium-Slow
- Temp sensitivity
- Moderate
- Application
- Rifle
- Origin
- USA
- Status
- Discontinued
Burn-rate position
FastestSlowest
Typical cartridges
.300 Winchester Magnum, .338 Winchester Magnum, .30-378 Weatherby Magnum
By cartridge
.300 Winchester Magnum also used: N550, Superperformance, N555
.338 Winchester Magnum also used: N550, 203-B, N540
.30-378 Weatherby Magnum also used: Norma MRP, N570, H1000
Similar burn rate
Supply & handling
- Availability (US)
- Discontinued
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
Winchester 780 was a slow-burning ball powder for large magnum rifle cartridges, discontinued in the 1990s and replaced by more modern alternatives. Found in older reloading manuals for .338 Win Mag and .300 Win Mag loads.