The last of the last! GP11 has stopped coming into the country a while ago and sources have been drying up. This will change eventually and we'll keep searching out the deals until then. We recently scored a small batch of loose GP11, 1982 production. This is the best ammo available for your K31! 7.5x55mm GP11 Match Grade. Brass case, non-corrosive, loaded with a 174 gr. GP11 lead core spitzer boat tail bullet @ 2640 FPS20 round bag