The SuperGlides may be the problem if they are loading too loose. BH209 does prefer a snug sabot but conicals or PBs dont seem to suffer as much if they are a bit loose.

If you like easy loading and a bullet that wont frag as easily try the Precision Rifle Ultimate tipped conical or the heaviest PBs. They are over priced like PBs but shoot very well with 90grs of BH209 or less.