New poster here. I've got the deluxe quick trim die and cutter for 380 ACP with power attachment. I won't lie and don't have a lot of experience reloading so perhaps I'm doing something wrong here. I have the die in the Lee APP press. I have the collar set to the longest length (.680) but it keeps trimming to .672 +/-.001 with the occasional .675 or so thrown in the mix. I'm chocking that up to chips in the shell holder.
I tried setting the adjustment collar to trim shorter and it did so it's not like I had that set wrong. Is it possible I ended up with an undersized die? I was considering calling Lee and asking for the dimension so I can verify. I'm also considering ordering a shim (.008) to put under the trimmer as I think that would fix the issue but I'm also trying to see if there's anything else I could be doing wrong. The cutter length is consistent.
Another consideration is the Lee APP shell holder is not the same thickness as the regular shell holder. I could set up a single stage press to double check that scenario. However I really wanted to use the APP press as it would make trimming lightning fast.
Any insight or suggestions would be helpful