Was shooting next to a guy with a 243, he asked what I was shooting. I told him a 6BR. He replied, 6 MM bullets are not good as 243.
And about as impossible to reason with.Sharp as a bowling ball wasn't he!
The the 270 Winchester ain't no good until past 150 yards, 'cause it takes at least that far for the bullet to get up to full speed. This from a guy that had a 110 grain bullet fail to completely penetrate the chest of a 100 pound whitetail doe at about 30 yards "because it weren't up to speed yet"...