2.2 Sport Rifle (50 m)

Calibre: 5.6 mm (.22 LR) rimfire only (ISSF Section 7); Maximum weight: 8.0 kg (17.6 lb) including all accessories; Sights: Aperture sights only (same as 10 m); no telescopic or optical sights (ISSF Section 7)

Source: Section 7

Send this to your friend — argument over.