I have a 6x47 Lapua with a 27" #7 contour fluted barrel that is a dream to shoot and a nightmare to pack around the hills as the balance of a sling using a Harris bipod is just plain poor. I am thinking of rebarreling somewhere down the line with a switchbarrel carbon wrapped barrel to cut several pounds off of the rifle. What are the pitfalls of a setup like that? Thanks. Tom