Cartridge: 300 Savage,250 Savage,270 Winchester,220 Swift,284 Winchester,25-06 Remington,22-250 Remington,280 Remington,225 Winchester,257 Roberts,243 Winchester,22 BR (Benchrest) Remington,30-06 Spring Material: Poly Rounds Held: 25 Delivery weight: 0.136kg