Hodgdon H4350 Smokeless Gun Powder

H4350 is a medium-slow Extreme powder that fits a wide range of rifle cartridges. Hodgdon lists it for the .243 Winchester, 6mm Remington, .270 Winchester, and .338 Win Mag, and it's especially good in WSM magnums with light to moderate weight bullets. It meters well and holds steady across temperature changes.

Yes. H4350 is one of the most widely used powders in the 6.5 Creedmoor, especially with 140 to 147 grain bullets, and Hodgdon publishes data for it. Before you load, check your headstamp: some 6.5 Creedmoor brass takes small rifle primers instead of large rifle primers.

No. They share a number and sit close together on burn-rate charts, but they're three different powders with their own load data. H4350 is a Hodgdon Extreme powder, while IMR 4350 and Accurate 4350 are separate formulations. Never swap one for another at the same charge weight.

Hodgdon's Reloading Data Center and current reloading manuals list H4350 for dozens of cartridges, from the .243 Winchester up through the magnums. Choose your cartridge and bullet weight, start at the listed starting charge, and work up while watching for pressure signs. Please make sure to follow the published data exactly.

Yes. H4350 comes in 1 lb canisters and 8 lb jugs. Once you've settled on a load, an 8 lb jug lets you stay on one powder lot longer, so you'll switch lots less often. When you do open a new lot, drop back to the starting charge and work up again. If you need a slower powder, H4831SC is a common next choice.