Yes you are right, the modle 62 is a improved version of the 1890, and the Rossi is a knock off of the 62 but it all started with the 1890 they are family, I was speaking in general. They are all very similar. ( copys )Rick,
The Rossi and Taurus pump action .22's are replicas of the Winchester M62.
They are close enough that a sizeable number of parts will interchange.
The Winchester M62A was the last of the pump action models that started with the M1890.
The 1890 was chambered in .22 short only.
The M1906 followed and had a longer carrier to handle Short, Long and Long Rifle .22
The 1906 was superceded by the M62 and M62A.
The M62's were also released in a .22 short only model that was used for a shooting gallery gun.
The Action is very reliable and will function well for hundreds of rounds between cleanings (even shooting the old wax lubed stuff)
The Rossi's are nice guns but do not handle as well as the Winchesters.
However, if you can find a Winchester in good condition for less than 600 dollars you are lucky. The Rossi is a very good compromise at ~200.00
The large screw on the left side of the receiver is the takedown screw. If you unscrew it you can pull the stock and carrier apart from the receiver, barrel and magazine assy.
When you take it apart you can push the button where the hammer hits to pop up and slide the bolt to its rear most position. this will allow you to clean the rifle from the breach end.
Magazine capacity is ~15 Long Rifle cartridges or 20 shorts.