Picked up a new 307 Range XP in 7mm Rem Mag, weather looks like it might smarten up enough soon to take it out and put some rounds downrange. Looking at Weatherby's recommended barrel break in, it seems a little extreme. Shoot 3, clean, shoot 3, clean, etc for almost two boxes of ammo. I know some people don't even believe in breaking in a barrel, but I'm wondering for the people who have Weatherby's, did you follow this or not, and do you think it had an effect on accuracy? TIA