Just remember, guys, IMR3031 has been a bit suspect over the years for producing pressure hikes in nitro-express cartridges. Back when that was all there was, it was used extensively, but there are much better powders around these days and its use in NE-equivalent loading should probably be discouraged.

Heresay only, I have never used it personally, but through a gunsmith mate, Vic P_, I know of several nice doubles taken off the face by use of that powder.

Another point to remember is that cordite was OK a hundred years ago when it was the only game in town, but today we can use considerably slower powders for better ballistics, or the same ballistics at much lower pressure.

Remember too that Reloader powders in full nitro loads need wads or filler, a two-edged sword if ever there was one.....