ORIGINAL: OzoneRanger

I have read or heard several different twist rates for the T/C Scout 1:20 , 1:32, 1:38 , 1:48. Can anyone give me the real story or has there really been all of these twists used on these rifles at on time or another durring their production. Some one told me that the early guns had the 1:20 rate and as time went on the rates progressed slower with the last guns made having the 1:48.