I have had the opportunity to own both at the same time which allowed a fair comparison.
If you want a solid platform that allows the Longer forend for use with bipod or Arca attachments, the MDT XRS wins hands down! The rubberized grip and the option to change between the vertical or angled grip on the XRS is also a bonus. The XRS is slightly bigger and heavier than the Bravo but in doing so, it feels rock solid and is nice to shoot from. Supporting a home grown product always helps keep the money and innovation going locally!
If you want a stock that is dimensionally smaller, think suitable for a rim fire, the Bravo may be the preference. I find the Bravo “slippery” due to the plastic they used. I’m sure I could rough up the surface or apply grip tape, but just evaluating them as they come from factory.
Both have their place, just depending on what you want your end build to be.