Its a shame Phillips & Rogers went out of business..
They made the "Medusa" revolver and the conversion kits to put the Medusa cylinder in other revolvers..
My suggestion would be to get a Medusa Model 47... There not easy to find though.. And Ive never even seen the conversion kits
I really didnt notice much loss of accuracy shooting 9mm or .380 compared to .38's, they did impact at different heights depending on caliber, but I would expect that..
I have found the 9mm taper to be a problem though... It seems newer 9mm has more taper than old 9mm... Ive bought old boxes of 9mm and used reloaded ammo with no problems, but every time I buy a new box from the store, only a couple rounds will fit and the rest are just sightly too big at the base... Kinda strange?.?...