Sure a 310 Ball-et will work, or a 320 REAL or . But I would not attempt a shoulder shot on Elk with anything less than 390 grains unless the trade off was a faster moving/expanding 300 grain saboted round.

For a PRB or a 310 Ball-et, I would limit my shots tofirst a heart shot and then a double lung and forget about a high shoulder shot.

My opinion.

Tahquamenon