Winchester
Winchester 748
Winchester's designated choice for the 223 Remington and a broad-coverage centrefire rifle powder spanning small varmint cases through large-bore magnums.
Official Winchester load data →
Specifications
| Manufacturer | Winchester |
|---|---|
| Product family | Winchester |
| Status | Currently produced |
| Application | rifle |
| Grain form | spherical |
| Composition | double-base |
| Temperature stable | Not marketed as temperature-stable |
| Burn-rate position | 130 of 198 (fastest = 1) — what this means |
| Typical cartridges | 223 Remington, 222 Remington, 30-30 Winchester, 458 Winchester Magnum |
Winchester canister propellants are spherical BALL POWDER products made in the USA; the round kernels meter precisely through volumetric powder measures. Winchester states the low flame temperature extends barrel life relative to other powders of similar burn speed. Not listed as temperature stable.
Burn rate
Medium rifle speed, just slower than Hodgdon Varget and alongside Winchester StaBALL Match.
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:
- Vihtavuori N140 (position 127)
- Shooters World Precision Rifle (position 128)
- Hodgdon Varget (position 129)
- Winchester StaBALL Match (position 131)
- Hodgdon BL-C(2) (position 132)
- Vihtavuori N540 (position 133)
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.