Now back to our regular programing
In Nascar, all cars are pretty much equal, built and operated within the rules. It is the same with most all sports. Shooting is no different. You are not going to bring a .338 to a .243 event.
For me, speaking only for myself, I am quite satisfied shooting traditional cartridges found in box stores. Some of them, are quite good at placing close groups in paper targets. The medium distance round I have chosen is the .308. I used to shoot 30-06. Also a good round. Sold my M1 Grand a number of years ago. I am quite pleased with my LR-308 I picked up a year ago. Sweet, fun gun to shoot. Does not take your arm off, does not empty the bank account (if you can find ammo for sale) loading the clip.
I have not shot any of the sniper exclusive stuff, but it would be fun to get a round off.