Hey Fisherdee,
You mention they are getting belled when going through the powder measure. This brings up a couple of questions to me since I also load .223 on my real old L&L.
First, the pictures seem to show the mouths being rounded inward rather than being belled outward. This would indicate that you are not adjusting your case activated powder measure properly.
Secondly, unless you are using cast bullets, you should have no need to bell the case mouth at all. Maybe I am missing something here and do not understand what you are telling me.
My L&L is a stock one from 1997 and does not have the modern EZ Ject thing, and I think the newer case activated powder measures are somewhat different. However, mine is still an L&L and should be similar to yours.
When I load .223, I use a standard RCBS two die set. I size and deprime at #1 station, reprime on the upstroke, then I charge the case with powder at either #2 or #3 station. I normally use jacketed bullets, so I have no need to bell the mouth. If I were to use a cast bullet, I would use the neck expander/bell die at #2 station before charging at #3 station. I do not use a powder through expander die for anything. I simply use standard dies I have been using for over 40 years.
After charging the case at #3 station, I seat the bullet in #4 station. I simply use my standard seating and crimp die to do this. Usually on .223, there is no need to crimp, but if it has a cannelure and you really want to crimp the bullet, I do it with the seating/crimping die like I have been doing all my loading life. I simply adjust the die in #4 station like I would do in a single stage press. There is nothing magical about it.
From your pictures, I would bet a nickel that you are not adjusting your case activated powder measure properly. It is not hard to do if you follow directions and take your time to figure out the mechanics of the mechanism.
Best wishes,
Dave Wile