I know none of the suppressor covers can stand up to mag dumps but can you give me an idea of what kind of testing you have done ? Just curious if this is only designed for a bolt action or can handle some semi?
Actually I have tested this with a full Auto mag dump of 30 rounds followed buy a second 30. It holds up with very well as it is designed to. Note that this will hold in the heat so I do not recommend more than one mag dump at a time, and you may want to remove it to allow your can to cool a little.
I would say it will work fine for semi-auto.