Just think if you hit a small tree or limb enroute just in front of your elk.....what bullet has the best chance? Maybe a small chance, but I'd not want a 'vld' type bullet. Missed a Mulie my first shot once in CO, 139 SP hit a small sapling a few yds in front of the deer, never saw it in my 4x. Lucky for me he stayed after the shot while the dozen or so does in front of him left. Neck shot dropped him, range around 110 paces.

Not ragging the Bergers, but just saying, your 160 is a good choice for what/how you are hunting IMO. A tougher bullet may just be preferably in a worst case scenario.