You can stick two or three down in a mag that holds four, but you can't stick four in the one that only holds two.
That's the advantage...
I'm an
Optimist not a
Pessimist, therefore I dont need all that ammo...
Which reminds me of a story (true): My buddy took his 17 yr old son out hunting. When they came in, he didn't see him unload his rifle. When he queried the kid, the kid said he already did. So he asked him how many rounds he had... And the kid reached in his pocket and took out two rounds. He said: "That all you got?" The kid answered: "I only need one, but I brought two in case I made a bad shot and need a follow up."
Now that's Optimism!
Grasshopper