While at Maryland Gun Works, in the 80's, we took in a local LEO agency's trade ins on new Ruger revolvers. The trade ins were 4" S&W M28 revolvers. Lou converted 3 of these to 44 Spl. by reaming the cylinders, boring and sleeving the barrel with SS Apex barrels, and rounding the butt to "K" frame round-butt dimensions. I was fortunate enough to trade a customer out of his and have had it ever since. It has never had anything but Lyman 232 Gr. Keith bullets and 7.5 Gr. of Unique. My absolute favorite revolver.
