@Miletic
Sorry but I have to disagree with your findings.
The 25 cal cartridges were doing everything the 243 is supposed to do before it came along and are still doing the job now and doing it better.
What is the 243 doing that the 250-3000 Savage wasn't doing for 30 years before the 243 came along. Nothing.
Like all things sellable the more advertising you can give a product the better it sells whether is a good or bad product . Winchester knew that and promoted the crap out of it.
Later with the advent of chronographs available to shooters Winchester had to revise their pie in the sky velocities down to actual levels.
In the right hands with the right projectiles it may work but the problem is the majority of shooters/hunters read all these wonderful stories about the 243, rush out and buy one and end up sorely disappointed. What these people fail to do is match the projectile to the game.
@NIGHTHAWK has great success using the 89gn TTSX but the average person just reads the hype rushes out and buys a box of 87gn soft points and wonders why game doesn't fall down.
The 25 cals on the other hand according to Nathan Foster's ballistic studies kill way out of proportion to their size and are a far better general purpose hunting cartridge because of this. My personal experience bares this out after over 50 years of hunting.
Bob