Alliant Power Pro
Alliant AR-Comp
Designed for fast-cycling, high-volume semi-automatic rifles, and equally usable in bolt guns. Alliant highlights heavy .223 and .308 match bullets.
Built for gas guns and it behaves like it: a medium-speed extruded that holds velocity and port pressure across a wide temperature swing, which is the real problem with feeding a semi-auto match rifle in changing conditions. Heavy match bullets in .223 and .308 are where it earns its reputation, and it works just as well in a bolt gun. The practical issue with AR-Comp is not its behaviour but finding any — it has been effectively absent from shelves, and where it does surface the price reflects that. Do not build a season's load development around a powder you cannot resupply.
- heavy-bullet .223 match loads
- gas-gun .308 match
- service rifle competition
Who has Alliant AR-Comp today
Checked October 10Out of stock at every store we track
| Store | Size | Shelf | In hand /lb | Stock |
|---|---|---|---|---|
| Lohman ArmsHazmat charged, amount not published | 8 lb | $265.95 | $37.17 est. | Out |
| Graf & Sons$23.50 hazmat per package | 8 lb | $487.99 | $65.68 | Out |
| Bruno Shooters Supply$26.95 hazmat + $19.95 ship | 8 lb | $541.99 | $73.61 | Out |
| Lohman ArmsHazmat charged, amount not published | 1 lb | $47.95 | $79.39 est. | Out |
| Graf & Sons$23.50 hazmat per package | 1 lb | $67.99 | $105.44 | Out |
| Bruno Shooters Supply$26.95 hazmat + $19.95 ship | 1 lb | $72.99 | $119.89 | 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 →
Specifications
| Manufacturer | Alliant |
|---|---|
| Product family | Alliant Power Pro |
| Status | Currently produced |
| Application | rifle |
| Grain form | extruded |
| Lee VMD (bulk density) | 0.0753 cc per grain · 0.86 g/cc |
| Temperature stable | Yes — claimed by the manufacturer |
| Burn-rate position | 109 of 198 (fastest = 1) — what this means |
| Typical cartridges | .223 Remington, .308 Winchester |
Grain shape
Short-cut extruded stick, sized deliberately to drop through a progressive measure without the bridging and grain-shearing that longer sticks cause. The web of the extrusion sets the burn rate; Alliant's TZ chemistry is what keeps that burn from drifting when ammunition bakes on a bench or sits in a cold blind.
Why geometry decides burn rate more than chemistry does: Shape Is the Product.
One of the three powders Alliant names as using TZ technology, alongside Reloder 16 and Reloder 23, and describes as very consistent across temperature extremes.
Burn rate
Between Reloder TS 11 and Reloder 15.
Chart agreement: position varies - Hodgdon ranks AR-Comp FASTER than Alliant Power Pro Varmint, but Alliant's own Reloader's Guide gives the opposite order (Power Pro Varmint, then AR-Comp). Vihtavuori bands the two together with Reloder 12. Wolfe/LoadData lists AR-Comp TWICE at two different positions, an internal contradiction in that chart. Ordered here per Hodgdon. Ranked by: Hodgdon, Alliant, 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:
- Accurate 2230 (position 106)
- Accurate 2460 (position 107)
- IMR 8208 XBR (position 108)
- Ramshot TAC (position 110)
- Alliant Power Pro Varmint (position 111)
- Hodgdon H4895 (position 112)
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.
AR-Comp is well regarded by the people who have it, but the dominant theme in 2025-2026 discussion is that it is effectively unobtainable, with users attributing the shortage to Alliant's manufacturing being absorbed by military demand.
- good reputation for AR match loads where users can get it
- availability is the entire conversation
- users report it working well through progressive measures
Availability: Widely reported as absent from shelves. Where large containers do appear, users describe the price as eye-watering. Community explanation is that Alliant/Bofors production is going to military contracts.
Consensus level: commonly held. Drawn from thread 1, thread 2, thread 3.
Sources
The specifications above come from Alliant'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.