Re: Help out this rookie reloader.
Your 300wsm is a great cartridge. Here are my recommendations:
Look at the Hodgdon 'Extreme' powders as they are not temp sensitive. Specifically, consider H4350, H4831SC, H1000
You will need to experiment with the various magnum primers.
Bullets for deer, sheep, caribou:
208grain Hornady Amax or 215grain Berger Hybrid. Although both are 'target' bullets, they both perform VERY well on game.
Bullets for moose and bears:
Look at the 'tougher' bullets like Nosler Accubonds.
For reloading gear, I bought the basic RCBS kit. It has the basics to get you started. From there you will be able to add the various stuff you want/need.
Finally, hope you have a bunch of money as it's about to start leaking out of your wallet.
I'm not gonna shoot here. I'm gonna shoot waaaaaaaay over there!