Saturday I shot my 625-7 Mountain gun with my 250gr. r.n.f.p.
loaded at 900 or so f.p.s. I think it was 9 grs. of Unique.
It was a snappier load than the 'cowboy'loads I shoot and with wood
grips I wouldn't want to shoot anything hotter unless hunting.

Start with cowboy loads and work up from there.
The fun in shooting a 45 Colt revolver is the big 'thump' then
that big slug flying downrange.

You can hot rod Smiths in 45 ,but why make it into a 44 Magnum
unless you're hunting or defending yourself with it?

Regards ,,Allen

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NRA cert.instructor&R.S.O.