Sizing bullets

[Nuclearcricket]

Thank you gentlemen for your reply's. Kurt that seems like a very tight barrel on your 52, almost makes me wonder if it started life out as a 9mm and then chambered in 38 spl. But anyway, I did not know that the Lee punches fit that tight. What got me thinking about all of this was the statement on Accurate molds about using a flat punch in your luber sizer to size your bullets as it would allot the bullets to self center. It made sense when I read it and then I got to thinking and looking at some bullets that I have sized with a close fitting top punch. Where I have seen the most problem is with my 9mm bullets, the truncated nose profile, along with a 400 gr 40 cal mold. They both have a tight fitting top punch and both show marks that they are not centered in the sizing die. In my mind that can not be a good thing as it would cause the bullet to start its way down the barrel off center and is a problem that will not self correct. When I first noticed this in the 40 I thought that maybe I had gotten the sizer die a little crocked when I laped it out and really didn't give it much thought but the rifle never did shoot as well as it should. I think I now know why, off center bullet = bad accuracy. With the 9mm and other flat tipped pistol bullets, its a simple solution to make a flat top punch to correct that little problem. With the other bullets its a different story as they are round nose. My thoughts were to make up an adapter to fit in the press that will hold a standard sizer die and then just push the bullets through after they are lubed, or perhaps before. After they are lubed would make the process a little easier and prevent galling.
Now it seems like I maybe need to rethink the push rod thing a little. It shouldn't be too hard to make rods .001 or so under the sizer diameter. The thing I don't want to do is to have to turn the rods down from stock large enough to fit into a press ram. If I make them to only fit into the shell clamp on a Co-Ax press it shouldn't be that much of a deal to do.
Any thoughts on this project idea?
Sam