Very Cool! I collect US Military Long Arms and I have a 1903 made in 1903 with a 1905 dated barrel. Serial number 9091 but unfortunately it is 30-06 and not 30-03 but has the old style stock. It will never be fired by me.
I did the wax shooting competition at several of the SASS conventions years ago and the acuracy of the arms and bullets even at those close distances was very sporadic at best. Maybe those single shot pistols were more accuarte.
That would be Gunzilla
Who is Gunzilla? - SASS Wire - SASS Wire Forum (sassnet.com)
Gunzilla (akagunzilla.com) Scroll down to see a lot of his costumes