IMR 4831 and H 4831 was always my powder of choice with the .300 Win Mag. RE-19 would work well, and I've heard some guys say the IMR 4350 works. I always used Magnum primers also b/c it's difficult to get consistent powder ignition when loading more than 60, 65 grains of powder. Good luck and enjoy
There is alot of good powders out there to use. The thing I have found is to pick a few that are ranked high for that caliber and then work up some loads from there. The ones I would try would be IMR4350 and I am a Alliant powder fan so I would try the new RL-17 and RL-22.
One of the most important pieces of equipment that you will take hunting is a good quality pair of optics and they take some care to give you the performance that you want. So here are a few tips.
Use some alcohol and cheese cloth to clean the lenses. I will usually pick up an extra cleaning kit from my optician when I have my eyes examined.
Don't touch the lens with your fingers. If there is a stick or a bug on them blow it off.
Use the lens covers. They are there...