Do these .25cal pellets shoot better with the regular Superior liner, or the heavy Superior liner? Can't remember the twist rates off hand.
I have the STX-A Slug liner in .22x600 only, the TR I measured is 1:15.5 ??I use them with the Slug A liner and there great,
Mine is the 700mm I shoot them around 930 fpsI have the STX-A Slug liner in .22x600 only, the TR I measured is 1:15.5 ??
maybe you shooting your pellets faster...