I have been reloading for about five years now. I know this is not a long time but I do reload for several rifle and pistol cartridges. Single stage and progressive. When I first started reloading a friend helped me out and I started out slow. A few thoughts on equipmeant. Get two case tumblers one for cleaning the other for polishing. A digital powder dispenser will be REAL handy and fast. Try Stoney Point case leanght gauge, this really helped my accuracy for reloading.
The Barnes bullets are very good, you don' t have to worry about their performance. I dug a .375 caliber Barnes fired from a H&H out of the shooting range hill and it looked like the expanded bullets you see in magazines, and it retained most of its weight.