Yes. The .32/20 uses a slightly smaller diameter bullet than the .32/40. Also, since the .32/40 used heavier bullets they are proportionately longer. Bullets designed for the .32/40 are not compatible with the .32/20. Consult any current reloading manual for starting loads and bullet choices.
if it's early production the bullet diameter is only .313. later production guns use a larger diameter bullet.
.38 spl will shoot without problems from an 1892 Winchester that is chambered for .357 The .38 spl develops less pressure than the .357, and it the same diameter of bullet and casing You may have a problem however with the .38 spl cartridges feeding properly from the magazine into the chamber. That is because the .38 specials are shorter than the .357 cartridges that the rifle was designed for.
Your Winchester model 1892 was made by Winchester in 1918.
your winchester model 1892 was made by winchester in 1899.
your Winchester model 1892 was made by Winchester in 1896.
your Winchester model 1892 was made in 1912.
Value of a 1892 2520 winchester
your Winchester model 1892 was made in 1893.
your Winchester model 1892 was made in the first year of production which was 1892.
your Winchester model 1892 was made in 1905.
Your winchester model 1892 was made by winchester in 1906.
Alliant's 2400 or Winchester's 296 are both good powders for the 32/20 and will cover bullet weights from 85 up to 135 grains