I've been trying to get back into 200 yard off-hand rifle shooting after a 20 year layoff. Sadly, during those 20 years, my rifles seem to have lost much of their old accuracy, my shooting jacket seems to have shrunk a couple sizes, and my old B&L spotting scope can no longer resolve .30 caliber holes, let alone .22's.
There may be no hope for the rifles and the shooting jacket, but I'm working to replace the B&L scope with more modern technology based on this little camera:
These things cost less than $10 from Amazon and once you figure out how to get some (free) code onto them, they will turn themselves into a web server and send reasonably high resolution pictures to your smart phone over a wifi connection.
Of course, it's not quite that simple. The camera's wifi antenna is etched into the printed circuit board behind the "ESP-32 CAM" lettering. The antenna is tiny and doesn't provide nearly enough "gain" to transmit a usable signal from the 200 yard butts back to the firing line. But those old stories about hackers using antennas made from Pringles cans to break into unsecured wifi networks are not just urban myths. A Pringles can might work. But in keeping with the "Poor Man's" theme, an old Foster's can is better. Here's my prototype "cantenna" which can do 200 yards but probably strains FCC regulations.
Finally, here's a screenshot from my phone at the firing line showing a few .22 caliber holes in a target at the 200 yard butts. The actual image from the camera shows the entire target but was zoomed in on the phone's screen to give maximum magnification.