I had bought Fed premium 168 gr berger bullets for an Elk hunt next month. Also bought the Rem Corlokt 150 gr along with Hornady American whitetail 139 gr. Unfortunately with the shortage of bullets these are my only choices. Well the 139 gr Hornady shoot very well and group at about 2.25 " @ 200 yds. The Fed Premium are about 6" groups and the Remingtons about 4 " groups. Are the 139 gr American Whitetail going to be enough bullet ?