I have been looking for years for a Siamese Mauser converted to a 45-70. They seem to be few and far between and when they do come up, they are a hack job, or have issues. I finally found one on GunBroker out of Montana. Holds 1 in the chamber and 3 in the magazine, functions/feed with no problem and a SAAMI rating on par with the Ruger #1.
Switching out the scope to a Leupold M8 4X fix power.