IMR Classic
IMR 4895
Originally a military propellant used in the 30-06, and described by Hodgdon as one of the most versatile medium-speed powders in the line. It spans very small bores through large dangerous-game cartridges and has a long history with match shooters.
Specifications
| Manufacturer | IMR |
|---|---|
| Product family | IMR Classic |
| Status | Currently produced |
| Application | rifle |
| Grain form | extruded |
| Composition | single-base |
| Temperature stable | Not marketed as temperature-stable |
| Burn-rate position | 114 of 198 (fastest = 1) — what this means |
| Typical cartridges | 30-06 Springfield, 17 Remington, 243 Winchester, 375 H&H Magnum |
Extruded single-base, made in Canada. Listed as subsonic-capable; not listed as temperature stable.
Burn rate
Medium burn speed, slightly slower than IMR 8208 XBR and just faster than IMR 4064.
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:
- Alliant Power Pro Varmint (position 111)
- Hodgdon H4895 (position 112)
- Vihtavuori N530 (position 113)
- Vihtavuori N135 (position 115)
- Accurate 2495 (position 117)
Sources
Other IMR 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.