faxon barrel break in?

[tdbru]

thanks Grayfox. what is the mba-1 stock. i'll have to look it up. if say 3oz/in, going from 16 to 20 would add 12 oz. which would put your 16" with a 20" tube just a little over 8lbs. so perhaps i also need to look into a lighter weight stock assy. i wanted 20" as that is the longest lightweight barrel i could find. as mentioned before i want to squeeze as much mv out of this ctg as possible, given the other compromises. i plan on trying some different powders of course. i suspect with a long thin barrel (though this 20" faxon gunner profile is thicker and shorter than the Howa std barrel) i may have to work a bit more in the load development to find a good load that is near top velocity and acceptable accuracy. was hoping to find one load that grouped well out of both rifles, obviously.
-tdbru