Customer Testimonial Shilen 6mm Dasher Gets The Job Done Northland Shooters Supply August 13, 2018 Robert T. of Oklahoma recently sent us some photo’s of his most recent Northland Shooters Supply build. Robert purchased a 28″ Shilen 6mm dasher Bull barrel and was getting a great grouping at 270 yards working with his new rifle. Thanks for the pictures Robert and happy shooting!