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Accurate

Accurate TCM

Developed as the canister-grade powder for the 22 TCM cartridge, and also supported for hunting-weight loads in large revolver cartridges.

A purpose-built powder - it exists because Armscor needed a canister propellant for the 22 TCM, and that is the job it does. It is also supported for hunting-weight loads in the large revolver cartridges, including .45 Colt data that belongs only in guns rated for the higher pressure. Outside 22 TCM almost nobody loads it, so expect to work from Hodgdon's dedicated data sheet rather than shared experience.

  • 22 TCM
  • hunting loads in 41 Remington Magnum
  • high-pressure 45 Colt in rated guns

Who has Accurate TCM today

Checked October 10

In stock at 2 stores — lowest in hand $50.89/lb (5 lb at Graf & Sons)

StoreSizeShelfIn hand /lbStock
Graf & Sons$23.50 hazmat per package5 lb$216.99$50.89In stock ↗
Lohman ArmsHazmat charged, amount not published1 lb$24.95$56.39 est.In stock ↗
Graf & Sons$23.50 hazmat per package1 lb$46.99$84.44In stock ↗

“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 →

Official Accurate load data →

Specifications

ManufacturerAccurate
Product familyAccurate
StatusCurrently produced
Applicationpistol
Grain formspherical
Lee VMD (bulk density)0.0787 cc per grain · 0.82 g/cc
Compositiondouble-base
Temperature stableNot marketed as temperature-stable
Burn-rate position62 of 198 (fastest = 1) — what this means
Typical cartridges22 TCM, 357 Magnum, 41 Remington Magnum, 45 Colt

Grain shape

Spherical and slow for a handgun powder, so it meters cleanly and fills the small bottlenecked TCM case; the thick web is what puts it down in the 2400 and 410 speed neighbourhood.

Why geometry decides burn rate more than chemistry does: Shape Is the Product.

Created through a Western Powders partnership with Armscor International for the 22 TCM. Hodgdon publishes a dedicated TCM data sheet alongside the online data centre. Note the 45 Colt data is high-pressure data intended only for firearms rated for it.

Burn rate

A slow handgun powder, charted between Alliant 410 and Alliant 2400.

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:

This powder is obscure enough in the US that its practical character is thinly documented. The note above is deliberately short rather than padded.

Sources

The specifications above come from Accurate'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.

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