Winchester
Winchester Super Field (WSF)
Winchester's stated powder of choice for 20-gauge AA target loads, and a good fit for maximising velocity in heavier 12-gauge payloads. It also serves action-pistol loads in 9mm, 38 Super and 40 S&W.
WSF is the powder Winchester itself points to for 20 gauge AA target loads, and it is genuinely good there and for pushing heavier 12 gauge payloads. On the handgun side it has a solid following in action pistol, in 9mm, .38 Super and .40 S&W, where being bulkier than the very fast powders gives a slightly softer push at the same power factor. It burns dirtier than W231 in very light loads; run it where it was meant to run and it stays clean.
- 20 gauge AA target loads
- heavy 12 gauge target loads
- USPSA 9mm loads
- .38 Super
Who has Winchester Super Field (WSF) today
Checked October 10Out of stock at every store we track
| Store | Size | Shelf | In hand /lb | Stock |
|---|---|---|---|---|
| Bruno Shooters Supply$26.95 hazmat + $19.95 ship | 8 lb | $293.99 | $42.61 | Out |
| Bruno Shooters Supply$26.95 hazmat + $19.95 ship | 1 lb | $40.99 | $87.89 | Out |
“In hand” is the shelf price plus that store’s hazmat fee and shipping, spread over one container. Stock is checked once a day — confirm on the store’s page before ordering. Compare all powders →
Official Winchester load data →
Specifications
| Manufacturer | Winchester |
|---|---|
| Product family | Winchester |
| Status | Currently produced |
| Application | shotshell, pistol |
| Grain form | spherical |
| Lee VMD (bulk density) | 0.0840 cc per grain · 0.77 g/cc |
| Composition | double-base |
| Temperature stable | Not marketed as temperature-stable |
| Burn-rate position | 42 of 198 (fastest = 1) — what this means |
| Typical cartridges | 12 Gauge, 20 Gauge, 9mm Luger, 38 Super, 40 S&W |
Grain shape
Spherical ball, so it meters identically through shotshell bushings and pistol measures, which is what makes a dual-purpose powder practical at all. Degressive, so energy arrives early, which is good for a target payload and thin on margin at the top.
Why geometry decides burn rate more than chemistry does: Shape Is the Product.
Winchester canister propellants are spherical BALL POWDER products made in the USA; the round kernels meter precisely through volumetric powder measures. Not listed as temperature stable.
Burn rate
Medium-fast shotshell and handgun speed, slower than Winchester 231 and faster than AutoComp.
Chart agreement: consistent across charts - listed in the same relative neighbourhood by every publisher that carries it Ranked by: Hodgdon, Vihtavuori, Shooters World, Wolfe/LoadData.
Powders charted near it — neighbours on the chart are not substitutes, and adjacency tells you nothing about what charge either one takes:
- Shooters World Ultimate Pistol (position 39)
- Vihtavuori N330 (position 40)
- Alliant Herco (position 41)
- Shooters World Auto Pistol (position 43)
- Vihtavuori N340 (position 44)
- Alliant BE-86 (position 45)
Sources
The specifications above come from Winchester's own published documentation, linked below. The two “RCM's read” sections are ours, not theirs — our assessment of what this powder is like to load, drawn from its published characteristics and from what handloaders consistently report. No manufacturer endorses them and no source below backs them. If you think we have one wrong, tell us — we would rather fix it.