We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › You might say this story began 101 years ago when Paul Mauser gave birth to a cartridge that he christened the 6.5×57 and tagged with the family name. Or the story may have begun just one year ago when I stood on the firing line of the National High Power Rifle Championships at Camp Perry, Ohio, aligned the sights of my .308 rifle on …