Is 203-B good for .308 Winchester?

203-B is commonly listed for .308 Winchester (burn-rate rank #58). Other powders reloaders use for .308 Winchester include Shooters World Economy Rifle, Accurate 2230, A1. Verify charges against a published load manual.

Is 203-B good for .30-06 Springfield?

203-B is commonly listed for .30-06 Springfield (burn-rate rank #58). Other powders reloaders use for .30-06 Springfield include Winchester 748, N530, 5744. Verify charges against a published load manual.

Is 203-B good for 6.5x55mm Swedish?

203-B is commonly listed for 6.5x55mm Swedish (burn-rate rank #58). Other powders reloaders use for 6.5x55mm Swedish include Reload Swiss RS60, IMR 3031, Norma 202. Verify charges against a published load manual.

203-B Powder — Burn Rate, Substitutes & Typical Cartridges

Norma 203-B is a medium-slow extruded powder bridging the gap between N140-equivalent and MRP-equivalent, covering .30-06 standard loads and 7mm Rem Mag with lighter bullets. Used in European hunting and target applications.

203-B

Burn-rate position

Typical cartridges

By cartridge

Similar burn rate

Supply & handling

About this powder

Sources & provenance