You are just fine with that rifle and load!

Now get some good boots, a good knife, a folding pruning saw for bones and don't forget your chap-stick. Carry something for water (don't forget to drink a LOT of water when you into high country) and a compass and maps of your area. Socks and sun glasses will be things you'll want.

Post pictures of your kill when it's done and you are home.
smile
happy Hunting.