Even when my magazine is loaded with BBs, sometimes there is no BB coming out the barrel when I shoot the SSG-10.
The magazine that is included with your rifle, is tested in your rifle before it leaves our warehouse. The sparemags that you ordered were not tested in your rifle, but in our Testing SSG-10. This is why it can happen that you might experience feeding issues on a very small amount of spare magazines ordered.
The SSG-10 is VSR-10 based which means that there are many factors that can influence the feeding of the rifle. It can range from loose screws on the rifle, dirty BBs, low-quality BBs, manufacturing tolerance on the rifle parts and the magazine parts.
Please watch the video to learn what you can do.