i have a Tikka T3 Hunter in 6.5X55. It's not fussy about bullet brand as long as they weigh 126-140 grains. My preferred powders are Alliant Reloader 19 for the lighter bullets and H4831SC for the heavier ones. The charge is 47-47.5 grains for either of the powder/bullet combinations. A RemCL 140 also shot very accurately over 40gr Ramshot Hunter.
