Enlarging primer pockets on 45 ACP military brass

[gene pool]

Gentlemen,

I am looking for ideas regarding enlarging primer pockets on early WWII 45 ACP military brass.

I acquired about two thousand pieces of new military brass dated 1942. The brass is primed with military corrosive primers of the time. They are easily de-primed, but the primer pockets measure only .2005 inches--smaller than I have ever seen on any brass, commercial or military.

They need to be reamed to a size where they will accept a large pistol primer measuring .2095-.2105 inches. By my calculations, somewhere around .003 inches must be taken out all the way around.

I tried swaging the pockets but to no avail. Brass material must be removed from the sides of the pocket and a little from the bottom.

I tried a hand tool, but there is way too much material needing to be removed to hold the brass by hand.

So, does anyone have experience in such a task? If so, would you tell me how you did it?

Thank you in advance,
Gene Pool

 

[bigedp51]

Did you try a crimp removal tool, your top photo shows signs of a slight crimp and being a smaller diameter at the top of the primer pocket.

Update Frankfort Arsenal used .204 diameter primers in their .45 acp ammo during WWII

Default 1930's FA .45ACP primer pockets
http://forums.thecmp.org/showthread.php?t=115597

The WILSON Primer Pocket Reamer, .210 size, is designed to remove the crimp from 30-06 and 7.62 NATO military cases and to enlarge .45 ACP pockets so as to accept commercial primers.

http://www.lewilson.com/images/PRIMER_POCKET_REAMER_-_For_Web_Site.pdf

PRIMER POCKET REAMER
http://www.sinclairintl.com/reload/primer-pocket-reamer.aspx

Let us know how you make out, we want to hear stories about sore bloody reaming fingers.