Primer pocket uniformer

[calixt0]

I've just recently bought a Lyman case care kit that has lyman a primer pocket uniformer. I've started using it and gone through quite a few case and some seem to take off just the slightest amount and others don't take off anything at all. Is this normal, am I doing something wrong, or is it just a cheap tool?

any information would be helpful.

[blockfort]

which uniformer and what brass?

[calixt0]

which uniformer and what brass?

the uniformer is the one that comes with the Lyman case care kit... the brass is lake city or wcc with the government spec brass mark.

[blockfort]

are you using the large pistol primer pocket uniformer on rifle brass? the pocket depths are different. LRP is .131" deep and LPP is .122" deep.

[calixt0]

this is for 223 so i'm using the small primer.. I don't think it came with seperate uniformers for rifle vs pistol.. I will look closer tho.. keep the advice coming.

[blockfort]

I think small pistol and rifle are the same. This is a nice one. I have both large versons. for small pistol I use the lyman in my drill.

http://www.kmshooting.com/catalog/primer-pocket-correction-tools/small-rifle_pistol-primer-correction-tool.html

[calixt0]

I think small pistol and rifle are the same. This is a nice one. I have both large versons. for small pistol I use the lyman in my drill.

http://www.kmshooting.com/catalog/pr...tion-tool.html

thanks.. I will measure the depth of the lyman uniformer...

[popeye4]

That's the point of the uniformer, to make the pockets conform to a minimum dimension. It may take a little from some (which are too small) and not take any from others (which are the right size or bigger).

[ar15barrels]

Are you sure it is a primer pocket uniformed and not a primer crimp remover?

A crimp remover cuts the top edge and does not cut the bottom of the pocket.
A primer pocket uniformed cuts the bottom of the pocket and does not cut the top edge.

[GeoffLinder]

I have found this to be the case with several different primer pocket uniformers. Some cases need a little, others need none. Pocket depth is what you are uniforming here and is about the only variance you will find. If width of primer pocket was too small primers wouldn't seat at all, they would just deform.

Primers and primer pockets tend to be very well controlled in their widths. The only exception I have found is with Federal .223 brass where once fired they seem to be a little loose in the primer fit department. I attribute this to softer brass and deformity occurring on first firing. I tend to avoid Federal brass for .223 reloading in semi-autos for this reason.