RE: good for deer?
Hunting in eastern Kentucky can offer some very close shots...150 grain .30 caliber bullets (non-premium) of nearly every type (i.e. Winchester powerpoint, silvertip; Remington Core-lokt, Federal Hi-shock, etc) at 2900 ft/s or higher speeds generated from magnum rounds (i.e. .300 Winchester Magnum, .300 WSM, .300 RUM, .300 Weatherby Magnum, etc) have performed poorly at ranges of less than 75 yards. The bullets expand violently too quickly, tend to separate from their jacketsand tend to make a mess of the game animal, and the deer normally have ran for an extended distance while producing poor blood trails. At longer ranges, the 150 grain loads expand as designed better.
At short ranges without premium bullets, I always go for a heavier bullet.
In truth, I never recommend 150 grain bullets in .30 caliber, because bullets in the 165 grain and 180 grain ranges have performed so much better for me over all hunting distances.