Was in at Belmont the other day and picked up a can of their Action Rifle which is actually St Marks (General Dynamics) WC747, a powder not normally availbale for civilian use. I had a wee bit a couple of years ago, scored off a mate. An excellent powder. The 748 should be perfect, as it obviously is WC748. The Action Pistol I have no idea what it is like, or of its origin. If it is a ball powder also it is most likely also a St Marks powder, although they only show ball powder made by them for 45ACP.. Belmont price their powders reasonably well. There is some information on their powders here www.dtic.mil>ndia>faintich
Hodgdon now market Winchester Powders so not sure where Belmont sit with them.
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