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10mm Ammuntion => Reloading 10mm ammo => Topic started by: Old454 on April 27 2020 03:49:29 PM MDT

Title: 10mm brass
Post by: Old454 on April 27 2020 03:49:29 PM MDT
I am new to loading 10mm ammo but not new to reloading.

I load on a dillon xl650

I ordered once fire range brass and most of the brass is ok. The problem I am having is with S&B brass and priming. It is just mangling primers.
Anyone else have these problems ?
Also see Blazer Brass with small primer pockets.

Any help with brass choices would be greatly appreciated

Thank you in advance
Title: Re: 10mm brass
Post by: Kenk on April 27 2020 05:24:14 PM MDT
Hey Old454,
New Starline brass isn't terribly expensive and has served me well

Ken
Title: Re: 10mm brass
Post by: The_Shadow on April 27 2020 07:57:10 PM MDT
Old454, welcome to the forum!  You may have some brass that has staked pockets as several are doing this these days.  S&B brass may even have slightly smaller primer pockets on their newer stuff.  You can Swage or ream the pocket and or use a tapered reamer to cut the staking...

Also be were that there can be small primer pocket brass as well, usually stamped "NT" for Non Toxic 
If you have a small primer pocket reamer try that to see if it helps with your priming situation!

Best regards and good luck! :D
Title: Re: 10mm brass
Post by: Muskrat on April 27 2020 09:56:42 PM MDT
I've found S&B brass to be bombproof...good for a dozen or more reloads, but I hand-prime.
Title: Re: 10mm brass
Post by: Old454 on April 28 2020 06:09:57 AM MDT
I think I have an alignment problem with my dillon xl650. Dillon is sending me an alignment tool.
That should help with seating in S&B cases.
Now I am finding Blazer brass that is small primed... uggg not fun lol
Title: Re: 10mm brass
Post by: slayer61 on April 28 2020 07:38:32 AM MDT
Quote from: Old454 on April 28 2020 06:09:57 AM MDT
I think I h......
Now I am finding Blazer brass that is small primed... uggg not fun lol

Really? 10mm brass with small primers? Or 45 ACP brass with small primers?
Title: Re: 10mm brass
Post by: sqlbullet on April 28 2020 08:05:54 AM MDT
This is the third report I have had of 10mm small primer.  Small primers are the wave of the future most likely for all but the very largest volume cases.  A small primer has plenty of pop to light 15 grains of powder and carries far less highly toxic compound.
Title: Re: 10mm brass
Post by: RDub01 on April 28 2020 04:01:42 PM MDT
I too just got some misc brass including some S&B brass. I haven't worked with these yet, but if I were having the issue you are I would first use this tool;
https://www.amazon.com/RCBS-90387-Military-Crimp-Remover/dp/B0063IDEK6/ref=sr_1_2?dchild=1&keywords=rcbs+military+crimp+remover+large&qid=1588110838&sr=8-2

And then use this;
https://www.amazon.com/RCBS-Primer-Pocket-Uniformer-Large/dp/B000N8N3GM/ref=sr_1_2?crid=1P0ZZHQBUBGEN&dchild=1&keywords=rcbs+primer+pocket+uniformer&qid=1588111029&sprefix=rcbs+primer%2Caps%2C350&sr=8-2

The first tool will clear the way for the uniformer tool.  If this doesn't help holler back.
I've haven't heard all good things about S&B brass, but I'll find out for myself soon..

You can find these about anywhere online or at a good gun shop, just happened to have Amazon up..
Title: Re: 10mm brass
Post by: RDub01 on April 28 2020 10:44:16 PM MDT
Hey just an update..
So I was punching out primers on the mixed 10mm brass, getting them ready for SS pin tumble, I noticed some spent primers were noticeably more difficult to punch out. When I looked at the head stamp.. S&B every time. CBC's are staked in and some of those had more resistance coming out, but not as much as the S&B's..  Hmm..  More later
Title: Re: 10mm brass
Post by: Bimmer on April 29 2020 01:59:25 PM MDT
Quote from: RDub01 on April 28 2020 04:01:42 PM MDTI would first use this tool...

I have Dillon's Super Swager (I drink blue Kool-Aide), but I'm not even sure it'll work with pistol cases... 
Title: Re: 10mm brass
Post by: sqlbullet on April 30 2020 09:15:30 AM MDT
Best option for primer pocket swage:  Dillon Super 1050 (I guess now 1100 or 2000 processor)

Best option for primer crimp ream:  RCBS Chamfer / Debur 17-45 tool.  The "tail" on the debur side of this tool can be chucked into a drill and really quick buzz in the primer pocket removes any crimp.  Be very careful, you can remove too much if you go more than about a half second.

Runner-ups I have tried:  RCBS Primer Pocket Swage dies.  Don't waste your money.

Viable options I haven't tried:  Dillon Super Swage.  While $114 + $22 for the 40 S&W adapter seems a bit steep, if you have a bunch of brass on you have to swage instead of ream, this is probably the option.  If you just have a couple hundred, just use the chamfer tool
Title: Re: 10mm brass
Post by: The_Shadow on April 30 2020 09:42:18 AM MDT
I have been using the Primer pocket reamers when I need to, I use mine in a hand held handle, although they can be mounted in the case prep machines.

(https://media.mwstatic.com/product-images/src/Primary/146/146201.jpg?imwidth=2200)

Recently I acquired a Lyman pocket uniformer that works well too!
(https://www.thefirearmsforum.com/attachments/253550-jpg.145596/)
Title: Re: 10mm brass
Post by: RDub01 on April 30 2020 10:56:41 AM MDT
Quote from: Bimmer on April 29 2020 01:59:25 PM MDT
Quote from: RDub01 on April 28 2020 04:01:42 PM MDTI would first use this tool...

I have Dillon's Super Swager (I drink blue Kool-Aide), but I'm not even sure it'll work with pistol cases...

Hey Bimmer
I've never used the Dillon tool but I'm sure it works fantastic on 5.56 and or 7.62x51 brass if you load those. Can't say how it would work on 10mm..
I use the RCBS Bench Swager for 7.62 Nato/5.56mm and it works great for that. Then I started using the RCBS Military Crimp Removal Tool as I can install it on the Case Prep Center and just add that process to all the other case prep operations. The Removal Tool will put a commercial bevel on the mouth of the primer pocket without any guess work, quick and easy. You can't go too far with it. If you don't have a prep center, you can use a handle or a cordless drill.

I've actually seen range brass where way too much of the primer pocket was eaten away!.. Someone didn't understand the concept..

Anyway I thought this would be an inexpensive solution to the funky primer pockets we're running into.


Title: Re: 10mm brass
Post by: Old454 on May 01 2020 04:36:35 PM MDT
I have the Lyman case prep machine that will uniform the primer pockets.
As far as taking out military crimps I use a counter sink and a drill it works very well and is really fast.
I have used it on 5.56, 7.62... I will pull all my S&B brass and uniform it all and Monday my alignment tool for my press gets here from dillon.
I will try to post some pics of this S&B primer problems and the small primer cases
Title: Re: 10mm brass
Post by: Old454 on May 01 2020 04:42:10 PM MDT
Hmmm how do you resize pics so that I can post them ?
Title: Re: 10mm brass
Post by: The_Shadow on May 01 2020 05:55:08 PM MDT
Most use a hosting site to store the pictures...
Title: Re: 10mm brass
Post by: RDub01 on May 01 2020 06:51:02 PM MDT
Hey Old454
I use Irfanview; super easy app to use.
If you are using Windows and you know if your system is 32 or 64 bit, you can d/l it here; and it's free

https://www.irfanview.com/main_download_engl.htm



Title: Re: 10mm brass
Post by: RDub01 on May 02 2020 05:55:44 PM MDT
Well I just got done loading 50 Sellier & Bellot cases. After treating the primer pockets with the crimp removal tool, primers went in smoothly, no issues. These were all the large primer size.
Now some actually went in without a treatment, but as soon as I ran into issues I treated them all.

Out of all these different brands of 10mm cases, the only ones that I had issues with, at least with this 165gr FMJ, were the PMCs..  They had a time getting in and out of the LEE Factory Crimp die. Not terrible, just some noticeable resistance.

So now we'll see how they all handle several loading's...
Title: Re: 10mm brass
Post by: Old454 on May 04 2020 08:10:37 PM MDT
I realigned my press with Dillon realignment tool.
Took 10 S&B cases and sized and primed them.
No go... primers smashed just as before...ugg

Took 10 more S&B cases sized and deprimed
Uniformed primer pockets and used large primer military crimp removal tool on my Lyman case prep.
Out of the 10 4 primed perfect
6 was better then before but still had smiles and a bit deformed and unusable.
I think after alignment of press and disk time on the timing block and all other cases primed easily.
I think these primer pockets might be off center a bit and there fore will be feeding my scrap bucket.
I might try installing the 10mm set up to my other dillon that I use for all small primer loading  and see if it runs on that press.
Title: Re: 10mm brass
Post by: The_Shadow on May 04 2020 08:46:47 PM MDT
Quote from: Old454 on May 04 2020 08:10:37 PM MDT
Took 10 more S&B cases sized and deprimed
Uniformed primer pockets and used large primer military crimp removal tool on my Lyman case prep.

Be careful if you are using a large rifle primer crimp removal as it can cut too deep, because Large Rifle primers are taller that large pistol primers.
The bevel on the entrance of the pocket is where you can make the most difference so the primer can be guided inside.
Title: Re: 10mm brass
Post by: Muskrat on May 04 2020 09:09:55 PM MDT
This is interesting to me. I've never had any issue priming any pistol brass. I've never even cleaned a primer pocket, much less reamed one. Maybe I've just been lucky?
Title: Re: 10mm brass
Post by: Old454 on May 04 2020 10:42:23 PM MDT
Honestly... pistol brass no I have deprimed and pin washed.

Rifle I have cut the military crimps out. But never pistol brass.
My pics are to big and wint let me down size them to post them.

My personal opinion is S&B is garbage brass.

But everyone knows how opinions are 😄
Title: Re: 10mm brass
Post by: Old454 on May 04 2020 11:29:55 PM MDT
Oh I use a small counter sink chucked in my cordless drill to remove military crimps. Works really well to cut a small radius into the primer pocket mouth
Title: Re: 10mm brass
Post by: Johnnyreloader on May 09 2020 03:06:22 AM MDT
I've come across quite a bit of S&B brass in 10mm and 45ACP, range pickups.
S&B seems to have tighter pockets than other brands.
I like this, as I usually get loose pockets before case splits in my 10mm liads.
Also, have used S&B primers in Hornady LnL AP.
They have less of a radius on corners than other brands, only brand to give me issues in the Hornady press.
Title: Re: 10mm brass
Post by: DenStinett on May 10 2020 02:09:37 PM MDT
Quote from: Old454 on May 01 2020 04:42:10 PM MDT
Hmmm how do you resize pics so that I can post them ?
Within the first [img] thingy, after the g but before the ], I add (a space), followed by width= and a value (I use 950)
You may have to use trail and error to find your sweet-spot
It'll look like this; [img width=950]
Gets (most) my pics so they fit the page

As for Brass, try and see if these guys still have any 10mm:
CHRISTENSEN RELOADING & SUPPLY
https://b5d13ef4-090b-40cc-a064-2edb66824888.filesusr.com/ugd/98ace9_e40be9ce091345c0a1b9988bf88b79b9.pdf

Graf & Sons
https://www.grafs.com/retail/catalog/category/categoryId/520?

And of course, MidwayUSA:
https://www.midwayusa.com/s?userSearchQuery=10mm+brass&userItemsPerPage=48

Good luck
Title: Re: 10mm brass
Post by: sparkyv on May 21 2020 05:16:12 AM MDT
I loaded up some S&B range brass this weekend and also found primers a little more challenging to seat vs. SIG brass.  Not enough of an issue to need to ream/swage, they did go in OK. When I need to open up staked primer pockets I no longer ream, now I use the RCBS swage die set.  Slow, but works like a champ.