I use Speer bullets but I use the Grand Slam in .270 Win 130 gr for deer and elk.
For whitetail just about any soft point 130gr .30-30 bullet should perform well. For deer you don't need to get too picky as far as bullet construction goes. Any standard soft point in the appropriate caliber will do, but I'm sure you'll get a slew of varying opinions now that I said that.
Hunting can be slow and frustrating if Mother Nature throws a warm hunting season at you. But things can take a drastic turn for the better with the onset of a cold snap. Whether you get snow or just a good, prolonged cold front, the hunting can improve on a dime. But cold whether can also make certain parts of the hunt more tedious. Here are some things to keep in mind when your prayers for cold weather finally pay off.
You can see a your quarry's breath when it is cold outside...