How do you use the two tighten knobs, use both or just one. Does it lock in place? I have had ball heads for years, Manfotto, they never lock in place the weight of cameras always shift a little.
That small bore target is shot with 22lr and .22 airgun with iron sights. Expert prone, kneeling, and seating is 95 total score, standing is 90 points. Center target is sightseers.
Jspool, explained for an 8inch target of a deers heart. Picture diagram https://www.americanhunter.org/content/how-to-zero-your-rifle-for-maximum-point-blank-range/