Don,
most walmart's around here carry the chp's ...you can check that out and and you can try rws super domes , gamo hunter's for the money do good as well ..another thing after the gun breaks in you might find the pellet's you have tryed before may group better for you ..the chp's group purty good in my B26 with a flyer once in a while ..my MM B-26 was great out of the box with beeman FTS and has just gotten better the more i shoot it ..
enjoy your B-26 ..