boss system reloading
i have a win. model 70 in 300win mag it has a boss on the end of the barrel.i`ve worked up loads in my 308 down to almost one hole groups at 100yrds (lots of combinations) would like to load up some 180`s for the 300, but was wondering when to bring the boss into play. will probably use this on elk or maybe just shake and bake some whitetails with it, any ideas will be helpfull thanks patience pays