I'm halfway through 1000 rounds of Winchester SuperX high velocity in my 15-22. Seems accurate for most rounds fired, although maybe 5-10% unexplainably miss L/R by up to nearly a foot at 100yds. I can see this when running with my scope at 7x.
Could this just be inconsistencies in the bullet castings? Is the bullet transitioning from super to subsonic a possible factor too?
Gonna try this weekend side by side with some American Eagle that I just picked up, too.
Thoughts appreciated.