I own the Lee push through die and it is OK when you use case lube. I would suggest a Redding push through die, however, instead. It costs more. I'm just not a big fan of Lee dies; they work, but that is all I have to say about them..
The stock Glock has a barrel that does not like lead cast bullets, so you should consider plated or jacketed bullets or consider an aftermarket barrel if you want to use lead cast...
people use lead cast in glocks but, apparently, they tend to foul a tad....
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