IMR Classic
IMR 8208 XBR
Designed specifically for match, varmint and AR-platform precision shooting. The short extruded kernels are intended to meter accurately through volumetric measures.
Built for the AR and benchrest crowd and it shows: short-cut kernels, a real temperature-stability claim, and a burn rate that lands right for .223 and .308 across a wide bullet range. It is the IMR powder people reach for when they want stick-powder consistency without stick-powder metering. Two honest caveats: it gives up some velocity to ball powders in the same cases, and if you trickle every charge to weight anyway, the metering advantage you paid for is worth nothing.
- AR .223 match
- service rifle .223
- .308 Winchester match
- 6mm PPC
Who has IMR 8208 XBR today
Checked October 10In stock at 2 stores — lowest in hand $55.93/lb (8 lb at Graf & Sons)
| Store | Size | Shelf | In hand /lb | Stock |
|---|---|---|---|---|
| Graf & Sons$23.50 hazmat per package | 8 lb | $409.99 | $55.93 | In stock ↗ |
| Hodgdon (direct)Terms not published | 8 lb | $430.99 | $57.80 est. | In stock ↗ |
| Hodgdon (direct)Terms not published | 1 lb | $61.99 | $93.43 est. | In stock ↗ |
| Graf & Sons$23.50 hazmat per package | 1 lb | $58.99 | $96.44 | In stock ↗ |
| Lohman ArmsHazmat charged, amount not published | 8 lb | $375.95 | $50.92 est. | Out |
| Lohman ArmsHazmat charged, amount not published | 1 lb | $57.95 | $89.39 est. | 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 →
Specifications
| Manufacturer | IMR |
|---|---|
| Product family | IMR Classic |
| Status | Currently produced |
| Application | rifle |
| Grain form | extruded |
| Lee VMD (bulk density) | 0.0710 cc per grain · 0.91 g/cc |
| Composition | single-base |
| Temperature stable | Yes — claimed by the manufacturer |
| Burn-rate position | 108 of 198 (fastest = 1) — what this means |
| Typical cartridges | 223 Remington, 5.56mm NATO, 308 Winchester, 7.62mm NATO, 6mm PPC |
Grain shape
Extruded, but deliberately short-grained, so you get the same neutral-burning single-perforated tube behavior in a kernel sized to drop through a measure without bridging. That geometry is the entire product pitch.
Why geometry decides burn rate more than chemistry does: Shape Is the Product.
Super short-grained extruded powder, made in Australia. It is one of the few non-Enduron IMR powders Hodgdon lists as temperature stable, and it is flagged as subsonic-capable.
Burn rate
Medium burn speed, between IMR 3031 and IMR 4895.
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 AR-Plus (position 105)
- Accurate 2230 (position 106)
- Accurate 2460 (position 107)
- Alliant AR-Comp (position 109)
- Ramshot TAC (position 110)
- Alliant Power Pro Varmint (position 111)
What reloaders say about it
Unverified community anecdote. The following is a summary of what handloaders report in public forums. It is not manufacturer information, it has not been tested, it may be wrong, and it contains no load data by design. Treat it as colour, not guidance.
8208 XBR is liked for its short-cut granule shape, which users expect (and generally report) to meter more consistently than long-grain extruded powders. It comes up as the preferred choice for heavy-for-caliber .223 match bullets by several posters, though others counter that if you trickle to weight the metering advantage is irrelevant.
- short-grain shape reported to meter better than long stick powders
- favored by some for heavy .223 match bullets
- described as giving up some velocity relative to ball powders
- availability described as spotty
Availability: Described as hard to find, with occasional retailer-specific restock posts treated as news. Considered less chronically absent than IMR 4064 but not reliably stocked.
Reported cautions:
- Users note that any metering advantage disappears if you are trickling charges to weight anyway.
Consensus level: commonly mentioned. Drawn from thread 1, thread 2, thread 3.
Sources
The specifications above come from IMR'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.