workonwood
workonwood
10 posts
Joined July 2013

550 resizing 45acp

Made a run of 1000 45 ACP. Half way thru I noticed my bell was getting smaller. Also my crimp was not sa much and me cases were not going into my case gauge. What would cause these setting to change?? Also I have some cases that wont fit in my case gause ( the bottom rim is too big)
jforwel
jforwel
72 posts
Joined November 2007

RE: 550 resizing 45acp

Check your die adjustments (lock rings) and if you are using cast bullets make sure you aren't getting a build up of lube or lead particles inside the dies.
workonwood
workonwood
10 posts
Joined July 2013

RE: 550 resizing 45acp

Dies are tight, plated bullets, readjusted and ran 100 more, bell disappeared again???? Die holder is tight and not moving, ram looks good, shell plate looks tight. Not sure whats going on. On my other 550 I can run 10k of 9mm and the adjustments never move.
dillon
Administrator
dillon
3,222 posts
Joined July 2007

RE: 550 resizing 45acp

Be sure to keep a fired case in station 1 when adjusting the other dies. This ensures the same upward pressure on the toolhead as you will have when progressively reloading.