I have a buddy that is new to reloading and is always fast stroking his press. I went thru the motion of setting up his FL die to bump the shoulder properly for his rifle. The other day I get a call from him saying that half of his ammo that he loaded would not chamber. He went on about how he had everything screwed down and had not F'd with the dies that I had set up for him. So, why would the ammo not chamber if I had set the die up properly?? Well, the reason is and this goes for most new reloaders is the press stroke itself. I went over to his house and watched him reload 50 shells. He hammered this brass in and out of the die at light speed and acted like it was a race to get done. After he had loaded all the shells I pulled out the Mo-gage and told him to check all 50. His gun was setup to be at 2 on the gage, and out of the 50 only 22 was in that range. This was all due to running the brass in and out of the sizing die to fast not allowing the brass to normalize at the dimensions you want. The others was out of spec and we went out back in his yard and he tried to chamber those one he set aside that was not at 2 our under. None of the rounds would close and the ones that did measure in spec closed with no resistance. I made this video to prove to him that a slow press stroke would net better results and that a fast stroke would actually make the brass grow.
Slow down that Sizing die press stroke and you will not have these issues as long as your die is set up properly.
Terry
Slow down that Sizing die press stroke and you will not have these issues as long as your die is set up properly.
Terry