Hello Huvius,

Thanks for the reply.

I did find another similar rifle from a Julia auction in 2008. (see pic)

I also found some earlier references of about 1909 for the 10.75x63 - of which it was indicated that some rifles in that caliber had their chambers later re-cut to 10.75x68 since only the case neck was a bit longer.

Is there any way to more closely determine the mfg date? It is my understanding that the 10.75x68 cartridge was not made until sometime after 1911.

If anyone else can be of some help, please reply.