K&M Primer Pocket Uniformer?

[littletoes]

Tell me what you think, as compared to the old Whitetail Industries version-yep, I lost mine somewhere...the original holder, with the tiny set screw would never stay snug, and I haven't an idea where it went...darn.

 

[artbosco]

I use the Sinclair very sharp Carbide Primer Pocket Uniformer vice the K&M even though I own lots of K&M products. It's a 2 in 1 tool that not only uniforms pockets, it's a super pocket cleaner as well. I simply chuck it in a portable drill, set it on low, and have at it.

 

[Patch700]

I chose the K&M merely for the fact that I had ordered their products before and was pleased with their quality along with the expediency once an order was placed.
The cutter itself does a nice job of both reaming and as mentioned above can be used for periodic cleaning of pockets as well.

Adjustable for depth and comes with a hex head so it can be mounted in a drill or in one of their nice handles (either plastic or the aluminum)

 

[DeltaBravo]

I had/have the K&M Large primer tool and it worked just fine! I now have the PMA Lapua-specific tool (a couple thou smaller diameter) and it's great. It's adjustable (bit of a pain) but does a nice job, both uniforming and cleaning. 21st Century makes an adjustable one, too.

Dennis

 

[littletoes]

Thanks guys!

Sinclair is sold out, and I just can't wait! I've ordered the K&M, but I hope to find where I lost the Sinclair/whitetail copy!

 

[Erik Cortina]

Thanks guys!

Sinclair is sold out, and I just can't wait! I've ordered the K&M, but I hope to find where I lost the Sinclair/whitetail copy!

The 21st Century is the best I have ever used. It has a fine depth adjustment that works great.

 

[CaptainMal]

Just got a K&M to use on my Dasher. They say to NOT adjust the depth.

I say that may not be realistic. On new Lapua brass it barely touched the bottom of the primer pocket and didn't on some.

 

[mikecr]

'Uniforming' brass, bullets, or pockets, should not be taken as 'trim to the shortest/deepest'..
There is a correct value, and a rational tolerance to it.
SAAMI range for sm pockets is .117-.123", that's .120+/-.003.
It appears as well as I can measure that Sinclair's small pocket cutters are .123" and Lg pocket cutters are .128" deep.
Lapua pockets are often within SAAMI spec.

We should cover the basics in reloading first, and not go to reinventing primer pocket depths without credible basis(that I'm sure we would all know about by now).

 

[littletoes]

The Sinclair use to claim .002" below the rim of the cartridge, which has worked for years for me. And a great tool for cleaning the old carbon out. A tedious job, but even if I didn't Need to do it, I still have too!

 

[Bowhunter4]

I will not get into Specifics on how to trim your primer pockets because we are all Comfortable and have reasons for doing things the way we do , but I really like the 21st century shooting uniformer.

1-love it adjustable depth and ease of it
2-it comes with the small and large cutters
3-will work with the new lapua primer pockets
4-if you damage cutter you can replace just the cutter.
5-cutters are sharp

I will add I do have a Sinclair and find it is hard to adjust.

www.21stcenturyshooting.com

 

[mikecr]

The Sinclair use to claim .002" below the rim of the cartridge, which has worked for years for me.

It makes sense to use 2thou under for primer cup to case head. You don't want primers extending beyond case head. But this is only as a loose reference -and where your pockets are set correctly.
An example of how this makes sense;
I cut pockets with a Sinclair tool that is fixed at ~.123"
My Federal 205Ms measure ~.123"
I set my K&M primer seater to crush(reconsolidate) .002" which leaves primer cups .002" below case head.

I cut pockets with a Sinclair tool that is fixed at ~.128"
My Federal 210Ms measure ~.128"
Again I set my K&M primer seater to crush(reconsolidate) .002" which leaves primer cups .002" below case head.
It just turns out that way, and it varies maybe a thou one way or another.
Olin & Remington & K&M recommend 2-6thou of crush.

I'm not reinventing anything here, and I see no need to depart from a good standard. I also have the K&M pocket tool in subject. I honestly don't remember if I've ever adjusted it, but I just checked & it matches the Sinclair at .123".
Why would any adjustment from this be needed?
The Sinclair: http://www.sinclairintl.com/reloading-equipment/case-preparation/primer-pocket-tools/handles/sinclair-primer-pocket-uniformers-prod34720.aspx

I realize Sinclair also sells a lot of junk these days. But if you go to their original/best products, across the board, you can be confident that you're heading to the best in reloading standards.

 

[wrongside]

I have both large and small K&M and love them. Gave a set to a friend and he thinks they are the best.

 

[Trevor60]

'Uniforming' brass, bullets, or pockets, should not be taken as 'trim to the shortest/deepest'..
There is a correct value, and a rational tolerance to it.
SAAMI range for sm pockets is .117-.123", that's .120+/-.003.
It appears as well as I can measure that Sinclair's small pocket cutters are .123" and Lg pocket cutters are .128" deep.
Lapua pockets are often within SAAMI spec.

We should cover the basics in reloading first, and not go to reinventing primer pocket depths without credible basis(that I'm sure we would all know about by now).

I just happened to measure the depth of my SRP uniformer last night, the Sinclair tool i bought (2013) small rifle primer measure .120 the ppc/br depth and the specific primer uniformer is .122.

this is pulled off the Sinclair site Q/A 2010


The Small Rifle and PPC/BR uniformer are the same diameter, however the difference is in the depth of the cutting surface. The PPC will cut a few thousandths deeper, on average the small rifle will cut down to .120" and the PPC/BR will cut to .122" to accomodate the specifications on the PPC flash hole. Thanks

Sinclair International from Montezuma, IA

Trevor

 

[littletoes]

I think that's correct for the European brass, it's deeper cut than American stuff. Russian etc. used for the ppc, or Lapua. Not sure on Norma though, I think Norma would be based on caliber use. None of my Norma stuff ie any deeper.

You won't believe this (and don't tell my Wife!), but I found my Hayden/Whitetail uniformer this morning in its original hand held driver... it seems I removed it from the original Sinclair power driver/holder because the set screw was slipping.

Oh well, it doesn't hurt to have too many tools!!

 

[manitou210]

I purchased a primer pocket uni-former from 21 Century did not work with new lapua palma brass to tight, contacted John at 21 he had me a new one in a few days it works great.
manitou