I gather this means few grains, lots of powder to fill the case(Trail Boss).

I would like to try a slower burning powder for my .45 Colt loads(1873 rifle). Some one here suggested Win 296, and I read it is deemed a powder with High Density Loading capabilities.

Is this a large grained powder?

Ric

I think of high density powders as those that take up little space per grain. W296 is a small grained ball powder that's quite dense, pretty well the opposite of Trail Boss. It's only useable in the .45 Colt for Ruger level loads.

Bye
Jack

I don't know what the pressure the 1873 can tolerate if it is of modern manufacture? The originals were not made to take a lot. 296 will fill a case with a lot of powder but will produce pressures about three times higher than .45 Colt SAAMI maximum pressure (around 35,000 psi).

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