Did he say 54R? Like 7.62X54R? Proof that Moisins are still in use in 2312 or whenever Firefly is set. (Or was that a Dragunov??) They just upgraded the optics, and its going strong on it 5th century...From the look of these wounds, I'd say a 54-R sniper rifle, laser sights.
Bonus points for identifying the base rifle from which Vera is built...