Gag!

Where, pray tell, are you getting "a little more punch" from the 6.5x55? The 2 grains of additional case capacity will provided about 1% more velocity potential, all other factors being equal. 1% is in the slow barrel vs. fast barrel vs. etc. neighborhood. The difference in performance potential between the 260 and 6.5x55 is more like a light touch, hardly a punch.

JEff