Another trick I have read on here is to drape a towel over the press as you do it slowly to slow/stop metal projectiles from blasting in every direction -IF- it should detonate.
I've also had to deprime these a couple times... no struggle with it. No "pop" either.
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.