What was said above, but, you should contact Martin (Airguns USA) and ask him the differences, he is one special person to speak with, very kind. He will build one to your specsSo the X version might be better for 30 cal, 100 yard benchrest?
Congratulations and no better way to get a RAW!I talked with Martin yesterday. He was very helpful. He is going to build a BR rifle for me.
We have not finalized the configuration, only a basic concept.
I want a stock like what you would find on a centerfire benchrest rifle. Something like the one in my avatar. A RAW XX 1000 seems to of a form factor amenable to that configuration.
Fairfield OH is close enough to shoot at regularly. They shoot a 100 yard outdoor benchrest match and 30 cal seems to be the preferred caliber. Martin recommended the HM version as better capable of handling 30 cal.
The new "X" version might be a good choice. I need to do a little more research to be sure that the "X" version or caliber I chose would not DQ the rifle from other BR matches I might like to try. For example, Fairfield is going to add N50 this year.