Thanks for the clarification! That makes at least three 1863 dated Richmond rifle-muskets with the trumpet shaped ramrod head, plus two 1862s (one high hump, one medium hump).
Based on the date stamp, my Richmond was made early to mid 1863.
Jim, does your 1863 have the early to mid 1863 date stamp, with the intact "8", or the late 1863 date stamp, with an opening in the bottom of the "8"?