The Citadel Trakr is the ideal plinking rimfire rifle. It is equipped with an 18" barrel, and a picatinny rail for the mounting of your favorite optic.
This rifle is made by CBC, an old company in Brazil that also makes ammo in various countries. Some of its brands are Magtech and Bellom & Sellier. The Mossberg 702 Plinkster and the Rossi RS22 are Made by CBC, and are the same rifles as the Citadel Trakr, with different stocks. The 25 round magazine from Mossberg will fit the Rossi without modification to the stock, but the Citadel magwell needs to be trimmed 2-3mm next to the trigger guard to fit. I trimmed my Trakr with a razor knife, and the 25 round mag works just fine. Also, it comes with a 1/2x28 threaded barrel so a suppressor can be used.