Read that booklet - cover to cover a couple of times, it has a lot of good info in it.
I agree. Also I'd suggest loose powder , you are able to tweak your loads much easier to get the best for your gun. I'd go with powerbelts to start as they are easier to load and I have had great results with them. I use the 295gr Copper Hollow points. Once your confident that you can fire & clean your new rifle , get to the range & have fun. Welcome to the sport !