TX200 Pellets

I bought a TX200 .22 cal couple weeks ago. I was wondering where to start on the pellets? I plan on shooting anywhere from 30 yards up to say a 100. It's about warm enough today to go out and try a few. I was hoping to save a little money and time by skipping straight to works best with others.New to this big boy air gun stuff so be patient with me. lol If someone said that I was gonna spend $700 on a BB gun a while back. Trust I would have laughed. I'll be shooting paper and birds, squirrels that kind of stuff Thanks
 
There's no easy, quick, or cheap way to confirm what will work well, I'm thinking. My TX200 .22 likes the JSB Exact Heavy Jumbo 18.13 grain pellets and H&N FTT 14.66 grain pellets, as do many of them, but there's no guarantee that yours will tolerate 'em! I have found that mine also liked Gamo Rockets...just gotta experiment, no easy way out of it.
 
I have a TX200 MKIII in .177. I use JSB Exact Diabolo 8.44 gr 4.5mm. I did a lot of research before I bought them and found many shooters in Field Target use them in their TX200s. I can't see trying anything else because they just work for me. Shot my best score on Sunday in Ohio at a Hunter Field Target Event with them. 

I just bought a TX200 MKIII HC in .22 over the weekend. It's going to take some time to get set up before I'm ready to shoot it. I have been seeing lots of people using JSB Exact Jumbo Heavy 18.13 gr. Pellets on the forums. I'm looking for something flatter. Thought I'd try JSB Exact Jumbo 14..35 gr. Anyone had any luck with these?