Last spring I picked up a FC in 6mm CM and a bargain Sig Tango4 [4-12 x 42.]
Set in Medium Talleys, I thought I'd see what this little rifle will do and initial
targeting was great so I haven't screwed with it since even though the scope
seems large for that size rifle. My initial loads work very well and have accounted for
a few coyotes and fox.

I haven't tried any really long shooting [past 400 yards] and that will have to wait for summer.

The Tango 4 has some nice features.....I like the lighted reticle....knob turning has not
worked out well for me as I dig for reading glasses to see what I'm doing.

The jury is still out on Sig scopes for me but thus far it's doing the job.