Thread: 6.5 cm case capacity

I found that winchester 270 cases are heavier than norma and hold more water - fired in same rifle ?? The Norma produce higher velocity than the Win for the same charge ( lower capacity ). Different Zinc / Copper ratio in the brass perhaps ??
That must be a real long barrel to get those velocities mentioned

Electric razor held on the case while tapping on ya bench will get more powder in the case.

Think of it like vibrating concrete