Why is resizing 9mm so hard?

[Reuben McCoy Rankin]

I use one shot on all my pistol brass about 6 calibers. BUT in my opinion never never use it for rifle brass.
I have stuck several cases before I wised up.

 

[judgedelta]

As mentioned above, if you are not using carbide dies, you will have to lube or suffer. A short tumble (30 min.) with corncob and some auto wax ( Nu-finish) will make it a lot easier.

 

[CoalTrain49]

I have a set of those 9mm Hornady dies that were given to me. Always like free stuff but I'm starting to wonder if I shouldn't just buy some carbide dies. I'm using Dillion spray to lube but the effort is still unacceptable. I load 30 carbine on RCBS carbide with lube. Not nearly the hassle as 9 mm with those Hornady dies. It's a good thing I don't shoot a lot of 9mm or those things would be gone.

 

[FROGO207]

I have the Lee 9MM carbide dies and they work well for me.

 

[hdwhit]

I use an RCBS carbide sizer and the 9mm cases felt like they were taking a lot more effort than they should and that's when someone on this board suggested I lubricate every 5th or 10th one. That made all the difference!

I use Hornady Unique, apply it with a make-up applicator and tumble if off afterwards in untreated walnut media..

 

[9mmepiphany]

I have used 4 sets of 9mm dies.

I started with Lee (gift) and found them too short for my LNL, got a set of RCBS (estate sale) which worked OK, but tried a set of Hornady wanted to try the alignment sleeve of the seating die. I finally upgraded to the Redding Pro Series set for their wider mouths and the Competition Seating die

 

[hdwhit]

Straight-wall cases only need a short carbide (or TiN) sizer ring. Tapered cartridges need a sizer that follows the taper of the cartridge wall and that means it has to be longer and means more of the case in contact with the die. Even with smoother surfaces like carbide or TiN the difference in friction is noticable.

 

[Decoy80]

If fairly clean I wash with hot soapy water and dry the cases. I use carbie dies and lube too. Deprime and size, run through a trim die and trim to length. champher and de-burr the cases. Tumble wet using stainless pin media , dish soap and Lemishine. When clean rinse and dry on a cookie sheet. Produces good,clean,more consisent 9mm ammo .

 

[Walkalong]

I'm using Dillion spray to lube but the effort is still unacceptable.

Something is wrong then, with lube (On a no lube sizer) they should be so easy you throw your arm out of socket thinking you'll have resistance, but don't.

Look to see if the Nitride coating has worn off. I had a Hornady 9MM sizer do that years and years ago, but I thought they had that fixed, as so many people say they are slicker than carbide.

 

[Blue68f100]

I've been using the Hornady dies for over a decade and the only time they get hard is when they need cleaning. I have noticed that using the wet SS cleaning system increases the load required for all sizing of using a std tumbler and NuFinish. I suspect the main reason is the dies are too clean and not enough wax/polish to work as a lube. I've got where I just spay a little of OS on the brass prior to sizing.

 

[Hondo 60]

is the tapered case of a 9mm just a pain in the. . . .?

You pretty much answered your own question.

Yes, as far as I can figure out the tapering of the 9mm is the biggest issue.
Plus the 9 mm is a higher pressured round.