Here is a prime example of different guns preferring certain pellet's...
When I started with air gunning, I had picked up what ever pellets that were available at the big chain store. I had gone through 3 different brands (6 different pellets) until I found one that was respectable in my Beeman Gas Ram Quiet Tek. Daisy, Ruger, and Crosman. The CPHP were the best of the bunch. Grouping at 1/2" at 45 yards. The Ruger Super points were by far the worst. 1.5" groups at 10 yards and 7" at 45. I had vowed to never shoot them again. They were that bad.
Let's skip ahead a year and 3 riffles later. The pellet that I swore to never use again, is now stacking in a single hole at 20 yards in my new QB78. Not to mention, are more consistent than the CPHP and JSBs. At least at the range of less than 30 yards.
Just because one gun hates a certain pellet, do not fear trying them out in other guns. I never would have thought this to be true, until I saw the results with my own eyes.
Yes, I know that these pellets I have used, and continue to use, are what many would call bottom to middle of the road in quality. But they seem to be working very well for me.