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Norma Rifle

Norma 203-B

The most flexible of the numbered Norma powders, spanning cases from 22-250 up to 358 Norma Magnum, with heavier bullets in 6mm BR and 308 Winchester and lighter bullets in 7mm-08.

The most flexible of the numbered Norma powders, running from .22-250 up to .358 Norma Magnum, with heavy bullets in 6mm Norma BR and .308 Winchester and lighter ones in 7mm-08. The B suffix marks the current formulation, which matters if you turn up an old can at an estate sale. US availability is the limiting factor as it is across the whole line - import-dependent and not distributor-stocked.

  • 6mm Norma BR
  • 308 Winchester
  • 22-250 Remington
  • 7mm-08 Remington

Who has Norma 203-B today

Checked October 10

Out of stock at every store we track

StoreSizeShelfIn hand /lbStock
Lohman ArmsHazmat charged, amount not published1 lb$39.99$71.43 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 →

Limited US availability. Catalogued by the maker but hard to obtain through normal US retail channels.

Official Norma load data →

Specifications

ManufacturerNorma
Product familyNorma Rifle
StatusLimited US availability
Applicationrifle
Grain formextruded
Lee VMD (bulk density)0.0722 cc per grain · 0.90 g/cc
Burn-rate position125 of 198 (fastest = 1) — what this means
Typical cartridges22-250 Remington, 6mm Norma BR, 308 Winchester, 7mm-08 Remington, 358 Norma Magnum

Grain shape

Extruded stick by convention; grain geometry is not published. Expect stick metering, so throw light and trickle up rather than trusting the measure.

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

The B suffix denotes the current formulation. Norma's page describes application only; grain geometry and base are not stated. Norma canister powder is not stocked by the mainstream US reloading distributors and reaches US shelves only through occasional imports - treat availability as unreliable. Many web shops that appear to list Norma powder in the US are not legitimate retailers. Norma publishes data through its own reloading portal rather than a printed US manual.

Burn rate

Medium to medium-slow rifle range.

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 Norma'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.