Originally Posted By: pooch
This IMR 7625, I assume it is slow burning. Can it be used with a bushing or must one weigh each load?

I have both a scale and an adjustable bushing bar


It's a granular powder with a fairly fine grain. It meters as well or better than any other powder I use. My Sizemasters with MEC bushings throw very consistent charges.

It has a burn rate near that of Unique but the low pressure 16 gauge loads that Tom Armbrust tested for me with SR-7625 were much more uniform than those with Unique. I now use SR-7625 for all of my 12 and 16 gauge low pressure loads.