I will not load on a progressive press without a lock-out die, I started with the 5 position RCBS Piggy Back, then went to the Dillon 550 B, Dillon suggested using their dies, that arrangement did not work for me when seating on one position and crimping on another, so they said I could use my RCBS dies, or Lyman, or Hornady, Etc.. Fast forward: I am at the range with another reloader, between us is a shooter/reloader? doing everything he can to pull the trigger, pull the hammer back, do anything, not possible, his cylinder is locked up on his 357 Model 66 S&W, this does not escape our attention so we stop everything and get involved.
The man in the middle used a Dillon 550 B to load his ammo, one case did not get powder, it got a primer and bullet. When chambered and fired the primer pushed the bullet into the forcing cone but not far enough to clear the cylinder. Anyhow we drove the bullet back into the cylinder then removed the case and bullet, to our surprise he started to load-um up again, we stopped that to, one case did not get powder, we do not know if the next case got double charged, we offered him ammo, we offered to help him with his reloading, we offered to loan him equipment including scales, we offered to stop shooting, leave and return with a scale, brand of his choice, he packed up and left. I will not load on a progressive press without a lock out die for pistol or a powder die for rifle/bottle neck cases.
And I still go to the range with wood drivers/dowels and a hammer, JIC, just incase I need to drive a bullet back into the cylinder, or I find someone struggling to pull the trigger, or hammer.
F. Guffey