I have a friend that collects the Winchesters that these are replicated from. The old Winchesters state S, L, or LR. I heard that these were called Gallery Guns and were used at the carnivals years and years ago. I shot one of his and had to have one. I couldn't afford a Winchester and bought a new Taurus model 62 about 10 or 15 years ago and still have it. It states LR only, but I couldn't find any difference looking at the Taurus when comparing it to the Winchester. 1srellic is right, I have shot S, L, And LR with no problem, even when mixing ammo. It is the only gun I have that will feed S. I really like it and it is reliable and accurate.
The only .22 ammo I can find in my area is S. Glad I have it.
Why does 1srellic find all the good deals? Retired maybe, or just plain lucky?