What is a Winchester model 6 pump action rifle in 22 cal short and long rifle?

The model 6 Winchester wich came from the model 1890 should be actually a short, long, and long rifle .22 catridge. Which is quite intelegent design it will chamer all rounds even if you mix them up in the tube. {and if you are woundering what a .22 long, well it is the .22 long rifle shell but a .22 short bullet. the regular .22 lr. has a longer bullet.