Why not go with your namesake and use a single action, cowboy tool loaded with .45 ACP Hollow Point ...
She could drill a few holes in him that would enable the body”Evil” to ooze out or be drawn out with the exit wound, assuming she didn’t shoot him in his obvious hard head....
I carry 2 old style vaquero’s(the larger ones) in .45 Colt....but only for cowboy action shooting.
my bone stock US Army 1944 vintage Single Action semi-auto 1911A1(Remington rand) is much easier to carry. flat, lighter and with equivalent power(in standard loading).
truth be known, at my age, when I carry it usually my 90s manufacturer Colt Mustang in .380, though no powerhouse, is the easiest to carry. And I covet my sons Ruger LCP, .380 which weighs less than half my Mustangs bulk.