Been somewhat familiar with it for a while, but my best friend is very into it (10+ years) and shoots about monthly. It’s funny to see the arms race in the local club. At first it was 10/22s, marlins, and other basic bolt actions with cheap bipods- now you see some very high dollar outfits. Our club does not shoot NRL rules (at least I don’t think we do) but I’m not super familiar with NRL22.
Our shoots consist of 40 total targets by each shooter in 4 rounds of 10. Chickens at 80yrds, pigs at 125, turkeys at 175, rams at 225 (this is just off the top of my head, probably not totally accurate). We have something like 10 minutes total per round, and have infinite shots at a swinger to get dialed prior to starting to shoot for score (all within the 10ish minutes). Once you start shooting your silhouettes you have one shot per target and cannot return to the swinger. Perfect score would be 40, but they sometimes add minis at 225 for a tiebreaker.
We shoot the “squirrel” category at the local club, which means tapered barrels, 9x max zoom, and no adjustable stocks. Recent winners have been anshultz, t1x, and CZ rifles off the top of my head. They all are capable of shooting perfect scores.
There are also categories for semis, irons, open, and then a 17/22wmr group. The 17s seem to shoot the most perfect scores if I remember right.
At first it seemed like most guys were shooting off of bags and blocks, but now I’m seeing more bipods, adjustable rests (like the caldwell contraption), and front bags all paired with rear bags. As for spotting scopes we have always just shot with a cheap spotter. Even with 9x on the rifle you can spot some of your own shots at 225yards.
It’s fun, but as a guy with other hobbies, the format we shoot seems to take a lot of time for the number of shots you actually get. If I spot for someone else and then shoot for myself it usually takes around 3 hours.