If your testing involves your human error in holding and trigger pull etc, your testing is practice.
If not, testing should be pretty quick and you can get back to practicing.
If you have a platform that is stable enough you just fire to the target and measure the results.
Like the one hole 3 shot group at the last 4 seconds of this video.
https://www.youtube.com/watch?v=PG13s1bj-jw