For scope rings and base go with the talley aircraft grade aluminum 1 piece strong as it gets. i went with medium. bullets the TEZ is great,250 or 290, the gold dot/ deep curl 250 is also outstanding with a crush rib sabot in a triumph and much cheaper that the barnes.100-110 grs T777. or blackhorn.going to be trying the 300 gr GD/DC soon.i used JB/kroil mix in mine about 30 strokes. the triump is a tack driver right out of the box.