Alliant Reloder 15

Specifications

Alliant notes it was selected for the US military's M118 special ball long-range sniper round, and that it contains a de-coppering agent. Good in short-action calibers and high-velocity varmint loads.

Burn rate

The centre of the medium rifle range.

Chart agreement: consistent across charts - listed in the same relative neighbourhood by every publisher that carries it 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 4064 (position 121)
• Shooters World Tactical Rifle (position 122)
• Accurate 2520 (position 123)
• Norma 203-B (position 125)
• Shooters World Match Rifle (position 126)
• Vihtavuori N140 (position 127)

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.

The Reloder line is discussed almost entirely through the lens of scarcity. Long-time users of RL15 in .308 report not having seen it in years, and treat the reformulated successor as an unknown they have not been able to try.

• strong historical reputation for .308 and service-rifle use
• reported as essentially gone from shelves
• reformulation to a successor product leaves users unsure whether old impressions still apply

Availability: Consistently reported as unavailable through 2025-2026. Users connect this to military propellant demand and to a broader shortage of highly nitrated nitrocellulose rather than to any one conflict.

Reported cautions:

• Users explicitly warn that the successor product is a different powder, not a renamed one — impressions and data from the original should not be carried over.

Consensus level: commonly held. Drawn from thread 1, thread 2.

Sources

• Alliant product page
• alliantpowder.com/products/rifle.aspx
• alliantpowder.com/resources/catalog/AP399_2023AlliantPowderReloadersGuide_Sing

Other Alliant powders

• Alliant 20/28
• Alliant 2400
• Alliant 410
• Alliant AR-Comp
• Alliant American Select
• Alliant BE-86
• Alliant Blue Dot
• Alliant Bullseye

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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.