Welcome to the 7mm-08 brotherhood
I absolutely LOVE this round. I shoot it more than all my other rifles combined.
139 grain Hornady flat base has been a winner for me for years. It is cheap, accurate and hammers deer. You sure don't need premium bullets, nor would I use them in the 7mm-08.
I have been killing deer and lots of pigs with the 120 grain Hornady hollow points as well, out to 550 yards. I haven't recovered a single bullet yet. I honestly have no idea how many critters I have killed with this bullet. All have dropped at the shot. Flinch