Winchester
Winchester StaBALL HD
The slow-burning magnum member of the StaBALL family, matched to large-capacity magnum cases where loading density and metering consistency drive uniformity.
Official Winchester load data →
Specifications
| Manufacturer | Winchester |
|---|---|
| Product family | Winchester |
| Status | Currently produced |
| Application | rifle |
| Grain form | spherical |
| Composition | double-base |
| Temperature stable | Yes — claimed by the manufacturer |
| Burn-rate position | 187 of 198 (fastest = 1) — what this means |
| Typical cartridges | 6.5 PRC, 7mm Remington Magnum, 300 PRC |
Part of the StaBALL family, marketed as temperature-insensitive double-base BALL POWDER that stays stable in extreme heat and cold. All StaBALL powders are REACH-compliant and carry copper fouling reducer additives that Winchester says extend the interval between bore cleanings. Made in the USA. Hodgdon flags it as both temperature stable and extra clean burning.
Burn rate
Very slow magnum rifle speed, slower than Hodgdon Retumbo and just faster than IMR Enduron 8133.
Chart agreement: consistent, but single-publisher - ranked only by Hodgdon (and echoed by the Wolfe/LoadData compilation). No second manufacturer's chart carries it, so the position is uncorroborated. Ranked by: Hodgdon, Wolfe/LoadData.
Powders charted near it — neighbours on the chart are not substitutes, and adjacency tells you nothing about what charge either one takes:
- Ramshot Magnum (position 184)
- Norma 217 (position 185)
- Hodgdon Retumbo (position 186)
- IMR Enduron 8133 (position 188)
- Vihtavuori N568 (position 189)
- Ramshot LRT (position 190)
Sources
Other Winchester powders
Verify the charge, not just the recipe
Good data gets you a safe starting point. It does not tell you what actually went into the case on stroke 340 — a bridged measure, a double charge, a squib. That is what an RCM Laser Powder Check is for.