You can borrow one of mine. Practiscore is just an online website used for matches. Google it.Hmmm, what is a "Practiscore"? Do they sell them at Wal-Mart?
Also not sure what a PRS/NRL22 is.
As for rimfire handgun, all I've got is a Browning Hi-Power Compact with a .22 conversion kit. Will that do for something like this?
It's neither accurate nor reliable since it was intended as a military training tool, but if I use the expensive CCI stuff it cycles more reliably than with garbage .22
Google NRL22 matches as well. Plenty of YT videos