Currently no, smallbore rifle is not supported with the NC100. Simply put, the steel used with the NC100 is not graded for the higher velocity and force of smallbore ammunition. Furthermore, the integrated backstop for the NC100 is only graded to stop air guns and bb guns.
We do, however, have plans to release an NC200 version that has upgraded steel and will support smallbore rifle. This version will not include any backstop; customers will have to supply their own external backstop.