Remington Actions ID Help

[PoachersPet]

OK I see these action come up forsale here and there. My question is some people ask prefix, sufex, how many numbers....
Some are better than others?? I was reading the other day that some feel the XR-100 Single shot isn't as good as the old stand by 700.

 

[Taildrag15X]

I joined this site and a few others to help get a handle on the Remington questions I had, great info.

http://www.remingtonsociety.com/forums/index.php