trez that is my little baby its a erfuhrt 1891 kar88 it is a carbine version of the comm 1888 it,s luckily all matching /original.
i did some research on the front band markings B.6.CH.1,77,, and it turns out that this particular rifles markings mean "77th weapon, 1st troop, kgl.bayer.6. chevaulegers-regiment prinz Albrecht von preuben,"
chevaulegers are light horse.
the bavarians were, i think ,the only state of the german empire to have a light cavalry .
sorry for the long winded answere but she is my baby and yes it is 8x57jbore (318).
i cast and handload so ammo for it is not a problem.thanks and yall have a great day .adrians