Re: IMR VS Hogden 4831
Until recently they were different companys.
Truly, I never understood the similarity in numbering, and wish Hodgdon had stayed away from IMR.
I use both, but IMR is better for some cartridges, it's more consistant lot-to-lot, and as temp stable(if not more so) than Hodgdon, despite the hype.
I don't like them fiddling with good ole reliable IMR.
Anyway, do not assume they are the same because of the number designations.