nhyrum said:I know they're different diameters. A 270 isn't a 6.5. but still, what the hell does it matter what someone else shoots?
I think, often, someone wins matches with a particular cartridge and then people invest a bit too much credit for the win in the cartridge and not enough in the skill of the shooter that day, and will copy the cartridge choice. And sometimes it works out that the particular combination of ballistics really does raise scores by a few points, which is all that is needed to motivate the target shooter. This is down to details, of course. Also, with the 6.5 CM, which the military is adopting, the Special Operations Command snipers doubled their hit probabilities with it, and that suggests some human factors aspect of the cartridge are apparently good for a target score.
Someone wants to think their 6.5 prc is the greatest thing in the world? So what. Someone thinks the 30-06 is God's gift to man kind? Who cares. As for "nothing new under the sun" we don't all drive cars with wooden wheels. Are steel belted radials "reinventing the wheel"? Progress isn't instantaneous. If you think all has been found that will ever be found, take a look outside
Not sure how you are reading all that into the posts. Anyone looking at the enormous array of cartridges available will realize most of them represent small incremental changes over others and not the reinvention of the wheel. As to who cares, I addressed one possibility already, but the simple answer is, anyone who, for whatever reason, is interested in the opinions of others on the matter.