my b26 .22 loves jsb exact express. at 21 yards 5 shots touch or stack always, and very easy to do it. Superdomes. daisy wadcutters, and predators all group good(from a dime to a quarter) daisy is surprisingly good especially for price and availability. The .22 is not crazy about any beeman pellet that i have shot, and does not shoot any other daisy well at all. My B26 .177 shoots superdomes and jsb exact diabolo the best so far. I can one hole 3 or 4 shots with these two, however, I seem to still have a flyer or two in this caliber.(5 shots at 21 yds with the flyer tend to be quarter size) The predators shoot almost as well as the exact and superdomes. The CPHP's shoot pretty well but flyers are much more prevalent. The .177 hates all daisy pellets that i have shot. I dont know why but my .177 is harder to shoot consistantly than my .22. The .177 may be a little more hold sensitive I just dont know. (I know Flyers are my fault, I just can't figure the .177 out) Back to question of CPHP's accuracy. My .177 will shoot them well and sometimes they will be all over the place.
Good shooting,
John