10 mm comes in a wide range of factory offerings. Most companies it's only loaded a little hotter than 40 s&w . Underwood, Buffalo bore and a few others load real 10mm . With that being said 10mm is a pussycat to a heavy 44 load. My current guns in 10 are a G29 and G20 neither are uncomfortable to shoot even with heavy 10mm . 44 loaded heavy ( 275-330 gr HC) will get your attention especially in a 4 -5 " revolver.
