Some thing I forgot to mention. Since you 6.5x55 is of European origin it will have a very long free bored throat designed for the long blunt 160RN bullet. The problem with this is shorter bullet may enter the bore canted & accuracy can be terrible. . New style long tapered 143 to 147 gr 6.5's will not be accurate as they have a very long tapered ogive. That is the area from the tip of the bullet back to where the full dia. of the bullet starts. To much jump.. The only way to tell is to shoot. Bullets like the Barnes 120 & 130gt TSX may help here as they like a jump. The Barnes 130gr TSX is almost as long as a 160gr but has the tapered ogive. Of course the 160 RN can always be employed. Wont have the flat trajectory of the lighter bullets but will for sure get the job done. The Europeans use the 6.5x55 & the 160gr for moose, effectively.
