HISTORICAL NOTES
The 6mm Creedmoor was the putative brainchild of gun writer John Snow, who began developing the wildcat publicly in 2009 as a magazine article project. But Snow, himself, explained that the idea began as far back as 2007, when the 6.5 Creedmoor had been introduced, and it’s likely that a lot of shooters simultaneously had the notion to neck down the 6.5 Creedmoor case to accept .243-diameter bullets.
Other mild case changes in the 6mm Creedmoor include pushing back the 30-degree shoulder 0.022 inch, which, likewise, shrinks the shoulder diameter 0.002 inch. Both have a maximum case length of 1.920 inches. In early 2017, Hornady introduced 6mm Creedmoor factory ammo; this makes sense, because the company had been instrumental in producing the original wildcat version.
Snow’s 6mm Creedmoor…
