Depends, on if you are loading short, long or long rifle.
I believe that the marlin model 783 holds 7 rounds.
The marlin model 990 was made to hold 18 rounds in its tube magazine.
The Marlin model 1894 rifle in 32-20 Win.should hold 10 rounds of ammo.If this is a original model made from 1894-1934.
My 1976 model holds 12 rounds of 22 mag. The 783 has a tubular mag. There were other models (782) with box mags that held 7 rounds of 22 mag.
Depends on the model
6 rounds
19
A marlin lever action 30-30 rifle can hold fife shells in the magazine and one in the chamber.
13 rounds of .44-40 ammunition.
Your marlin should hold 5 plus one in the chamber.
A Winchester model 1200 will hold 30 rounds. These rounds are similar to the size that a 12 gauge shotgun wold hold. This gun was first introduced in 1954.
Your winchester model 1400 holds 3 rounds of ammo.(1 in the chamber,and 2 in the magazine.)