http://writingexplained.org/clip-vs-magazine-difference
Trick to Remember the Difference
As you can see, the difference between magazines and clips is quite clear. A clip is used to load a magazine, and a magazine feeds ammunition into the chamber.
But, if you won’t be able to remember all of this for the future, here is a helpful trick to remember clip vs. magazine.
Think about these two terms outside of their firearms context.
What is a clip? A short sequence of TV or radio. Or perhaps a newspaper of magazine clipping. A clip is something small. Smaller than—say—a magazine.
What is a magazine? A magazine is a full publication, sometimes 100 or more pages.
If you can remember the difference between a magazine and a magazine clipping, you can remember the difference between a clip and a magazine.
A clip is a small device that usually holds no more than 10 rounds that is used to load a larger magazine. Magazines can carry up to 100 or more rounds, just like the pages in a magazine publication.