I use the 3 round Ruger's in several rifles. From looking at the MDT, it appears it may be "flusher" than the Ruger which has a pretty good lip on the bottom. With nothing extending out from the width of the sides it may fit in anything, even bm's with a barricade stop that would prevent use of the Ruger 3 rounder. Might require a finger push from the open action to get it out though.
