I have a Sendero II in 300rum. The problem I am having is vertical stringing and then the occasional flyer. One gunsmith said I need to bed the firt two inches of the barrel. I'm leaving on a trip next week, so he said a quick fix was to fold up a business card and slide in between barrel and stock tip and leave it there, thus applying pressure to the barrel. What do you guys think of this? I was always under the impression that the barrel should not be in contact with anything