I have a sendero made around 1997 ish in 7mm stw . it shoots very very tiny groups .
the rifling was a bit rough at first ( it appears to be hammer forged rifling ) and would copper foul barnes x bullets , everything else was fine .
since then I've fire lapped the barrel ( something I wouldn't recommend , unless you have a really good idea of what you are doing ....and even then , but it did work for me ) and the copper fouling issue has gone away ...... also since then barnes has changed the composition of their bullets and it the barrel may have been a non issue with the new bullets .
it is long and heavy and a pain to pack any distance , especially in tight willows , and is more at home in big open slashes and fields .