The 7x57 when hand loaded with modern bullets (140-160 grain hunting bullets) would fall between the 7-08 and the. I hope you find the bore to be 7mm, but thatвЂ™s just me. ThatвЂ™s about the only difference, and a shorter barrel. Since it is a 1916, it may be one converted to. It is an excellent mid-length caliber that can be hand-loaded to power levels a bit better than the 7-вЂ08 because of its greater powder capacity. Yes, I believe the вЂ93 вЂњSpanishвЂќ Mauser would have been in 7x57mm - the so-called 7mm Mauser. The only down side to such a custom job is the stepped barrel that many don't seem to care for. Clean it all up and do a nice rust blue (easy) and you would have a nice little custom rifle. The old sights are easily removed as they are just silver soldered in place. If you know how, its not a difficult DYI but takes a lot of care to avoid ruining the heat treat. You can find either a replacement military stock online or get a nice custom unit from several stock makers.ДЄny decent smith can bend the bolt & drill/tap it for a scope. They have complete ones for around $65, use the parts you need and sell the body. If the bore is as good as you say, it could be a deer or hog killing machine.Д¬heck out Sarco for a bolt. 7.65x53 is easily made from 30-06 brass and uses common. In either case ammo is readily available on line. You need to mic or slug the bore to see which one it is. What do you all think and what would you do?Д§.65x53 is an excellent cartridge, as is the other original chamber (7x57). This could get my feet wet on that project, but, I need the rest of the bolt before I invest any other time or $ in it. I can hand load for either one.ДЄt the crazier end of the spectrum, I've been wanting to mill out an aluminum chassis for a bolt action. I've read that one should steer clear of high pressure calibers with these, but a 308 would be nice. Something suited for bench use and possibly whitetail deer at 150yds max. What I'd like to do is find the back half of the bolt, and build it into a custom gun. It was free, and I can machine, weld, cerakote in my shop. The finish is compromised with light rust on the barrel and receiver. Not sure where I can get one, Numrich is out. The back half of the bolt (firing pin assembly/safety) is missing. So it's basically a barreled action with a bolt. I removed the 5-6 broken sections of wood from the metal and trashed it. It was a complete rifle at one time in his possession, but the stock was given the drunken rockstar guitar-smash treatment by some jerk and the wood is not salvageable. I tried a 308 for shits and giggles and it did not fit. Unsure of caliber, it is not marked and I haven't been able to check. Marked Oviedo with crown, straight bolt handle.

As far as I can tell from a bit of interweb research, it's a 1916 Spanish model 1893. by an old coworker who knows I like tinkering and machining stuff.

1916 spanish mauser sporter stock