I've been thinking of buying one.  You have one for sale?  I can get one locally for about $150 new stainless.  Not a Colt, but a 3rd party.  I heard the older 1-12" twist shoots 22lr ok.  I have an older 1-12" twist.  Thinking of getting a 1-7" twist to shoot 60-70 gr bullets for deer.  Maybe later.  Might be better to just get a 6.8 SPC or 6.5 Grendel.