Welome!
I have nothing to add except listen to the more experienced guys that posted already. These guys know their stuff. I'm still learning.
I can, however, relate a few experiences of my own.
One thing to remember is, you get what you pay for.... almost. What I mean by "almost" is:
A $6 to $7 box (50 rounds) shoots the best in a target rifle I have. Its great stuff. BUT, the $0.85 CCI Blazers shoot very well, just not as tight, maybe a flyer every once in a while.
If I'm at the range shooting broken chunks of clay birds left over from the shotgun guys, at distances of 75 to 100 yards, I'll use Blazers. I can shoot all day and not go broke. Now if I was shooting in competition, where a huge pot of money is to be won (so I've heard), I'm gonna use the $7 stuff. Understand??
I must ad that there are certain good values (best bang for the buck) Wolf Match Target, which you'll hear a lot about, is great stuff. It can be had for $20 brick. Outshoots a lot of more expensive stuff on the market. Of course there are others that exist, Wolf is just a good example.
Much more can be said. And again, I'm still learning.
steve