K&M Primer Pocket Correction tool depth

[Reformedcitykid]

Hi all, I have both the large and small rifle primer K&M primer pocket correction tools and cannot figure out how to get the depth set. I know they say they come set to .131 & .122 respectively, but for me they bottom out at ~.1745 & ~.1345. I know you adjust using the set screw, but these measurements are set with the cutter seated as far as possible. Am I measuring wrong or misunderstanding the set depth? Anyone else have this issue? Thanks in advance.

 

[memilanuk]

Caliper looks a little off plumb / vertical to me... might just be the camera.

 

[Reformedcitykid]

It’s the camera angle. I measured it first then took the picture. I measured multiple times beforehand to ensure I wasn’t losing my mind haha

 

[memilanuk]

Measure a primer cup - disassemble a spent one if need be - for reference, and then stick it up along side the cutter as a sanity check. If you know what the cup measures, and it's visibly off from the cutter, then you have some verification. If not... replace the batteries on the caliper. When mine start giving me stupid numbers, that's usually the quick fix. Probably not anything that simple in this case, but you can always hope.

 

[fisherman987]

I have to believe those cutters are not fully bottomed out. I would remove the set screw entirely and see if you can fully bottom them out. Check the holes for any foreign bodies. You could also measure the length of the actual cutter and the depth of the hole to see what kind of number you should see if indeed the cutter is reaching bottom.

 

[Reformedcitykid]

I have to believe those cutters are not fully bottomed out. I would remove the set screw entirely and see if you can fully bottom them out. Check the holes for any foreign bodies. You could also measure the length of the actual cutter and the depth of the hole to see what kind of number you should see if indeed the cutter is reaching bottom.

I did all of those suggestions: no obstructions, fully bottomed out, and measured the depth vs the length of the cutter. I’m going to ready out to K&M & see what they say

 

[fkimble@charter.net]

Have you zero'd the caliper?

I'm confused, are you trying to cut deeper? Are you saying the cutter doesn't reach the bottom of the primer pocket?

Frank

 

[B y r o n]

What is the depth of the primer pocket after using the cutter?

 

[memilanuk]

I'm confused, are you trying to cut deeper? Are you saying the cutter doesn't reach the bottom of the primer pocket?

I think he's saying it's as short as it can physically go, and is still way too long - would cut too deep.

 

[Uncle Bruce]

I think he's saying it's as short as it can physically go, and is still way too long - would cut too deep.

Cut a couple of cases and insert new primers. If they are not correct then you can work on a solution.

 

[JFrank]

I think he's saying it's as short as it can physically go, and is still way too long - would cut too deep.

Mine wasn’t deep enough. That’s why I switched to 21st century.