Originally Posted by
TucsonFX4
I don't have a concentricity guage, but visual inspection does not reveal any damage to the brass after resizing or in the seating die without a bullet in place. I have set the seating die as per Dillon instructions and also tried with it lower than recommended. Even when I set the seating die all the way down to make contact with the shell plate, it doesn't put any pressure on the case.
I am not using an expander die, and I am not trimming or chamfering/deburring. The brass is once fired Speer. I clean, lube, decap/resize, clean again, clean primer pocket, swage primer pocket (crimped primers), then load. The brass is typically measuring 1.748, which is shorter than the trim-to length and why I am not trimming. I have noticed on a few rounds what appears to be a very small amount of copper jacket shaved off and sitting at the mouth of the case. Also, when I removed the seating stem and placed the bullets in the stem to check the fit, there seems to be a noticable amount of cant that is allowable. Are these potential culprits as well?
Can anyone verify straight loads with .223 Dillon seating dies and 55 gr Hornady FMJBT?
Bookmarks