SK 420101 22 LR Rimfire Ammo 40gr 50 Rounds 4023045421018 SK 420101 Standard Plus 22 LR 40 gr 50 Bx/ 100 Cs The SK Standard Plus has been considered to be a reliable training cartridge by 22 lr sports shooters across the world. Its versatility in use means... MSRP: Was: Now: $7.07 Add to Cart