I once had a 6 ppc that wouldn’t shoot competitive groups at 100, at least with my tuning abilities. But it shot very well at 200. In fact took it to a 200/300 yard match and won the match with it.
Same here, I had one Shilen barrel that was ho hum at best at 100, but came alive at 200.
Won the 200 LV at the Cactus with it.
Another of life's mysteries.......
