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Accurate

Accurate 4100

A magnum revolver powder for full-power, high-performance handgun loads.

A slow handgun ball sitting just behind No. 9 - magnum revolver territory, and specifically the .454, .460 and .500 end of it. Metering is the stated strength, which counts when you are loading heavy revolver ammunition in quantity. It has never developed a following next to No. 9 and H110, so the practical record on it is thin and you will be working from the data sheet.

  • 454 Casull
  • 460 S&W Magnum
  • 500 S&W Magnum
  • 44 Remington Magnum hunting loads

Who has Accurate 4100 today

Checked October 10

In stock at 1 store — lowest in hand $43.60/lb (4 lb at Lohman Arms)

StoreSizeShelfIn hand /lbStock
Lohman ArmsHazmat charged, amount not published4 lb$142.95$43.60 est.In stock ↗
Lohman ArmsHazmat charged, amount not published8 lb$209.99$30.18 est.Out
Graf & Sons$23.50 hazmat per package8 lb$258.99$37.05Out
Graf & Sons$23.50 hazmat per package4 lb$137.99$43.86Out
Lohman ArmsHazmat charged, amount not published1 lb$36.95$68.39 est.Out
Graf & Sons$23.50 hazmat per package1 lb$37.99$75.44Out

“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)0.0690 cc per grain · 0.94 g/cc
Compositiondouble-base
Temperature stableNot marketed as temperature-stable
Burn-rate position67 of 198 (fastest = 1) — what this means
Typical cartridges357 Magnum, 41 Remington Magnum, 44 Remington Magnum, 454 Casull, 460 S&W Magnum, 500 S&W Magnum

Grain shape

Spherical with a thick web, which is what makes it this slow, and degressive like any ball. As with slow spherical revolver powders generally it wants a firm crimp and a working charge to build the pressure that burns the grain through; downloading it is where unburned powder shows up.

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

Manufacturer calls out its metering as a particular strength. Made in Belgium.

Burn rate

A slow handgun powder, charted immediately after Accurate No. 9 and just ahead of Alliant Steel.

Chart agreement: consistent across the three charts that list it Ranked by: Hodgdon, Vihtavuori, 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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