I shoot (and handload for) a World War 2 era Springfield M1903A3 .30-06 on a regular basis.
On a more occasional basis I shoot a Marlin M1893 .32-40 lever action (made in 1899), a French military Berthier M1916/5 carbine (World War 1 vintage), a Remington Model 11 semi-auto 12 gauge (Grandfather's shotgun from the 1930s I think), and a Ruger Mark 1 .22 pistol (my Dad bought it used in the early 1950s.)
Oh and one more. A 1920s vintage Stevens Arms "Springfield" single-shot .22 bolt action. In the mid-1970s my Dad bought this rifle from a next door neighbor for $10.00 so I could move up from BB guns. Still enjoy shooting it to this day.