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/
WD is the worst, the residue left behind will gum up everything, I don't understand why it is thought as a lubricant and protector. Do what you want, I will never use it like that.
I understand now, once you have the scope aligned, image C. You do not have enough room on your scope tube for the traditional level and need one on the picatinny which put you at image B
If it comes off the camera oval then it a problem with the camera and software. I'm sure it comes off the camera. They stretch the 4:3 sensor to the 16:9. Video frame image resized to 4:3. Circles in video are round. Are the circles in view finder round or oval?