WKW Wilk (military designate is Tor) heavy antimaterial rifle
Ammo: 7,62x51mm Length: 1038 mm (barrel: 680 mm) > Bullet Vo = 870m/s, 3500 J Weight: 6,8 kg (without scope and ammo) Optics: 4-16x Schmidt&Bender Alexander Lezucha - designer of the 7.62mm Alex sniper rifle & 12.7mm Wilk/Tor heavy antimaterial rifle. They are the first sniper rifle designed in Poland ever! There were some models before 2nd World War though, but none of them were adopted or produced.
Photos and information from: REMOV