I have bought seven No. 3 carbines this year. All were in excellent (98%) condition and all were in the $600 range. Normally the 44 Magnum is most expensive, followed by the .30-40 Krag and .375 Winchester. Next the .223 followed by the 22 Hornet and 45-70. I would expect to pay about $700 for an excellent 30-40 or .375, $850-$900 for a .44, and $600 for the others. Many simply price everything at $600. That seems to be the going price.