I'm suprised nobody has posted-

IT DOESN'T SAVE YOU ANY MONEY OVER BUYING LOADED AMMO.

Also,

Wildcat cases are 5 times more succeptable to loss and damage than the parent case.

In addition to busting the pin that die will invariably land on your foot.

This is all but inevitable if you happen to be wearing flip-flops.

I think another truism is if you're reloading on a humid day
you're quite likely to have the powder charge stick in your funnel, that is until you pull the case away thinking it's full of powder. Not a chance, now it's all over hells half acre. That one has been known to make grown men weep. Best wishes.

Cal - Montreal