Splattermatic, Your pellets in the tube, second from the right are H&N Hornet. Not the most accurate in my .22 rifles but not bad and they penetrate!
Centershot is right, Add a couple weights of diabolo and flat point to the test.
I used to buy the Sampler from Straight Shooters airguns when I added a new airgun to the mix but $35 +$17 for handling was a little steep...
It was cheaper than buying a tin of each of the 18 pellets though. He might make you a deal as he's retiring.
Test everything you can find and keep a spreadsheet of the results, it'll give you more time shooting and data doesn't lie.