Mac,
Thats not a problem the GS and the Bridger FN solids and their HPs are no different than the Northforks in that respect..all have a solid base with the pressure rings...All normally have to be charged with a grain or two more powder to reach pressure level and velocity to come to regulation and may require some minor sight regulation also...displacement of bullet jacket or material simply applies to the rings only and very little movement of barrels takes place as it has been explained to me....