Norma Rifle
Norma MRP-2
A very slow magnum rifle powder intended for the largest overbore cases, sitting a step below MRP in burn rate.
Discontinued. Canisters still circulate, but the maker no longer produces it — and load data for it may be withdrawn or archived.
Specifications
| Manufacturer | Norma |
|---|---|
| Product family | Norma Rifle |
| Status | Discontinued |
| Application | rifle |
| Grain form | extruded |
| Burn-rate position | 171 of 198 (fastest = 1) — what this means |
| Typical cartridges | 338 Lapua Magnum, 300 Winchester Magnum, 7mm Remington Magnum |
No longer listed in Norma's current gunpowder catalogue - Norma's index shows eleven powders and MRP-2 is not among them. Any MRP-2 encountered today is old stock. Norma 217 occupies broadly the same slot in the current lineup.
Burn rate
Slower than Norma MRP - the slowest powder Norma catalogued.
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:
- IMR Enduron 4955 (position 168)
- Norma MRP (position 169)
- Alliant Reloder 22 (position 170)
- Alliant Reloder 23 (position 172)
- Vihtavuori N165 (position 173)
- IMR 7828 SSC (position 174)
Sources
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.