10mm brass

[Old454]

Hmmm how do you resize pics so that I can post them ?

[The_Shadow]

Most use a hosting site to store the pictures...

[RDub01]

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

[RDub01]

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...

[Old454]

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.

[The_Shadow]

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.

[Muskrat]

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?

[Old454]

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 😄

[Old454]

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

[Johnnyreloader]

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.

[DenStinett]

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

[sparkyv]

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.