Three dimensional prototyping has allowed me to build my dream Round Action inboard hammer gun as a mixed prototype, part plastic, part aluminum and part wood. It was educational to see years worth of ideas and thoughts take shape. See it here:

http://www.oplognosia.com/english/sideBySide.php

A question for the more technically minded is whether the lockup with a single round bolt would stand up to calibers like the 30-30 and the 7X57.

All comments welcome