First, I thought I'd show any of you that might not be familiar with stripper clips, how they work.

Ammo was often loaded into stripper clips in WWI and WWII.

In the case of the Mausers, it was 5 shot stripper clips.

This is what they look like.

The rifle action has a slot cut in the top to allow these clips to be set into the action to allow loading.

Then you just use your thumb to push the rounds out of the clip, into the rifle magazine.

This leaves the empty stripper clip in the action and it can either be removed by the shooter...

Or, as was probably most often done in battle, by simply closing the bolt.