Thread: Dupont IMR 4227 vs IMR 4227

Last week @Muttonguts gifted me an unopened canaster of Dupont IMR 4227 for use in my Hornet. Thanks Bruce! Nice to meet you!

On researching load data I can find IMR 4227 Hornet loads in the HODGDON 2023 ANNUAL RELOADING MANUAL. The references do not use the Brand Name Dupont, only IMR4227.

It is possible that the with sales, acquisition's and merges the Dupont Brand gunpowder may not even exist anymore....???

So the question is, "Is Dupont IMR4227 the same as IMR4227? Can I use the HODGDON reloading data with confidence that it is the same product?

The reason for this cautious approach is I recall reading that different manufacturers use the same code for their products, but the performance of the powder is vastly different, for example, from the HODGDON manual there is both H4227 and IMR 4227. Is there a third one called DUPONT IMR 4227


?