Your weapon is useless without magazines and severely hampered by 10 round magazines. When there is another ban you'll wish you had more because even the best magazine will fail.

If you're using a % of the weapons value as a yardstick for purchasing magazines, would you also only buy a quantity of ammunition that cost less than the weapon?

I will explain how this works, it is very simple really.

1. You buy a gun you like and it comes with 2-3 mags

2. You buy some more mags, like 5-10

3. You start thinking, boy that is a lot of mags that only work in one gun, what if something goes wrong with that gun, then I will have all these worthless mags?

4. So then you buy another gun that takes the same mags

5. Then you think, well I need to have x amount of mags for both so you buy more mags

6. Repeat until safe is full

I have a general rule for my handguns and rifles, if its a gun I don't ever carry and rarely shoot I'm good with 2-4 mags. If I carry or shoot it a lot I try to have a minimum of 10 per.  Then you have SHTF guns and gear where I like to have a surplus of whatever I can.

My 9mm SBR uses colt mage and i think I have around 50 or so, My AR's also have around 50 and my go to handguns all have at least 10-20.