There have been many posts in the past about what works best in Savage .30 cal. rifles and the concensus seems to be 168 gr. The 180 gr. bullets will work just fine, have no fear. With the right powder and wgt of charge just about any wgt bullet will work well. It just takes a lot of work at the reloading bench and range to test, and to many of us that is the fun part of shooting (second to hunting).
Go ahaead and shoot those 180 gr. They may just work fine. If not you have the cases for reloading.

El Lobo