Glad you asked...
Loading a Marksman Repeater BB gun is quite a chore compared to other, more simple loading BB guns on the market. First, you have to pull the slide back. Then, you need to push the slide in. Put the gun on safety and then, tilt the front of the gun barrel forward to put the BB's in. In order to get the BB's to load, you should remember to hold it upwards when cocking the gun.
Then again, this answer might help you...
When looking to load a marksman repeater BB gun the first thing to do is read the instructions. Even BB gun owners should be taught proper procedures in handling a gun. All guns should be handled as if they are loaded.

