TheDutchman19 asks about the pros and cons of using the expander ball.
A pro is, dies with them are cheaper, so you've got more money left to spend foolishly on some other fun stuff.
One con is, they bend case necks, especially when their diameter's a lot bigger than the sized down case mouth they gotta be pulled through. Another con is they are typically too small because the one that comes with the sizing die has to be small enough to handle all the possible case neck diameters the reloader's cases have and still make the case mouth hold the bullet very firmly.
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