have .280, love it, is a pinhole puncher...

I would suggest looking at Nosler Accubond..I use 160gr. for everything from deer to elk...The Nos Accubond in a 160gr. has a Ballistic Coefficient that levels the playing field against the lighter 140 grain...

I use Reloader RL 19 and with my Ruger it is one of the best loads I have developed...I cannot remember what the grain i use is, but if you want more details I can get them to you...

remember your gun is different than mine and what is a good load for my gun may not be for yours, you cannot replace practice for good input online...