That depends on the caliber of your rifle and its age.The current models made and dating back to 1940 in caliber 30-30 will hold six rounds total.One in the chamber and five in the magazine.Some earlier made models had many special order features including the type of magazine and that effected the length of the magazine tube,hence the amount of rounds held in the tube.
Your winchester model 1400 holds 3 rounds of ammo.(1 in the chamber,and 2 in the magazine.)
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.
13 rounds of .44-40 ammunition.
A Winchester model 1894 rifle will hold 6 rounds of 30-30 ammo total.5 rounds in the magazine,and 1 round in the chamber.
Your winchester model super X2 should hold 5 rounds of shotgun ammo.
The Winchester model 1892 rifle in .357 cal. which was started in 2011 will hold 10 rounds of .357 mag.The earlier version made in 1997-1998 should hold the same amount.
15, 17 or 21 depending on the type of 22lr ammunition.
5
the Model 77 with magazine ( clip fed ) holds 7 rounds of long riflel only. The tube feed model I believe held 15 rounds.
10
Depends on the barrel length. Normally 7.
5 rounds if you have 1 in the chambers, but 4 If you don't.