Rick,
I have XAS M+S in a 225,70-19.5 on the rears. Bridgestone R720?!?!? On the fronts
Both are a 14 or 16 ply tire with steel belts side and tread.
The XAS tires are a traction style. Have worked well in mud and snow. I have used ,gain chains in some icy/snow conditions to tow bobcat trailer. They also come in some 22.5 sizes. Mostly a on road construction tire for smaller dump trucks etc.
Ive attempted to us the XRV Michelin tires. Really soft side walls for ride comfort. Too soft IMHO for rv use too.
Also look at the Toyo all steel cased tires. Double Coin is another low cost tire. Made in China with good reviews. Ive used some hey versions on the front with out issues.
Yeah, used phone for last post and this one. Wonder if I fixed all the android/phat thumb miss speels......
Marty