? on reloading a .338 lapua & diff. from other .338's

I have a couple of questions regarding the .338 lapua ammo. I know this might be more directed for Constructor but I know a few of you guys do your own reloading so please pour out you knowledge

I would like to know the difference between .338 lapua and the other .338 rounds. Now the reason I ask is because the Lapua round seems to be the Mercedes Benz of the .338 family. The average price for a box of 20 .338 lapua is about $90 but the other .338's is half that price if not less. So whats so great about it and did I make a mistake in picking up the Armalite AR-30 in .338 lapua?

Next if it is a great round what to you guys recommend doing for reloading in the lapua? Now just to give you a heads up Im new to the reloading stage but understand its the best way to go if you plan on going through alot of rounds :twisted: .

Now the cool part is that I have Dillion Precsion right in my backyard. So starting from A to Z what reloading device do you recommend, powder, brass and grain? I also have a feeling this question may come up and yes I plan reloading the 6.8spc plus the 7.62x54.

Oh and please note where you get the powder, brass and grain.

I do appreciate any input given on this topic!