carbide resizer leaves ring 9mm

[pasote]

Hello. When I use my redding carbide resizer on once fired 9mm brass it leaves a ring at the bottom of the brass close to the case head. is this normal? How do I avoid this? I have both raised the die from the ram and lowered it but it does not help. Do I have to switch to regular dies with lubes to avoid this? Thanks for your help.

 

[rsmithsr50]

I use nothing but carbide in 9/40/45/etc. no ring issue
is the brass just blown out a bunch ? WHERE did come from

 

[Drop Port]

Is the ring all the way around? and what was the brass fired in?

 

[pasote]

I fired the starline brass myself one time. the rest of the brass is win and fc fired by my son in law. may have some range pick up also but I tumbled the cases before resizing and rejected the ones that had dents or discolored areas. they all pass the eye test. the ring goes all the way around the case head. just doesn't seem like the die is reaching the end. talked to a redding tech and he said to back the die up but it dies not help

 

[Rocketvapor]

Stick a sized case into the barrel chamber.
Is the ring visible at the unsupported end of the case?

 

[pasote]

no. it goes all the way into the chamber

 

[pasote]

I made a dummy round without powder or primer and it chambered and locked up fine.

 

[Twicepop]

If it's on visual and cant be felt, it is where the die stop sizing the case. The portion between the seen ring and the extractor groove hasn't expanded and isn't being sized. This part of the case has the web and the thickest part of the sidewall above the web. The inside of the cases tapers and slightly increases in thickness from the case mouth to the web.

 

[pasote]

even with lube same result. since the dummy round chambered and locked up fine, maybe it is good to go.

 

[Jdne5b]

Look like this?

 

[pasote]

looks just like that

 

[Jdne5b]

Most likely...Your chamber is bulging the brass, and the sizing die is creating a crease where it cant size it... you can check the brass by using a good straight edge lengthwise on fired/unsized cases to see if there is a bulge.

Or your shell plate is not perfectly aligned with the die and when the case enters the die, sizing it off center.

Or.. your die is reamed off center from the threads.

What kind of sizing die?

 

[pasote]

redding carbide sizer

 

[pasote]

should I return it to redding? it is brand new. this is the first time I have used it.

 

[Jdne5b]

I would look at the cases with a straight edge like described above.

Maybe try a different die if you have or can borrow one.

I have a gun that bulges the brass like that. I solved it by rollsizing the brass... which isnt a cheap solution.. but I had to do it. After a couple times it creates a weak spot and will blow out or separate.

What kind of gun?

*if you arent using lube, i would also start. Even with carbide.

 

[Drop Port]

I fired the starline brass myself one time. the rest of the brass is win and fc fired by my son in law. may have some range pick up also but I tumbled the cases before resizing and rejected the ones that had dents or discolored areas. they all pass the eye test. the ring goes all the way around the case head. just doesn't seem like the die is reaching the end. talked to a redding tech and he said to back the die up but it dies not help

What was the firearm used?

 

[pasote]

well some of the brass I shot in several different guns, a sig p320, beretta 92fs, browning high-power, and some is range brass that my son in law picked up. so I dont think it is specifically a chamber issue since several guns were involved including the range picked up brass. I think it is a die issue. the redding tech told me that it was no big deal if I made a dummy round and it chambered and locked up tightly. but now I think it is a die issue and I need to return it to redding

 

[pasote]

I did lube some of the brass with the same result

 

[SSL]

I did lube some of the brass with the same result

Carbide dies do not require lube. Carbide is slick and hard so that you do not need lube. That's one of the reasons for its use.
I've loaded countless .45 ACP, .45 Colt, .44 Magnum, .38 Special/.357 Magnum, .41 Magnum using carbide dies without lube or issues.
Remember, 9mm is actually a tapered case, not a straight wall like the ones listed above - .391" at the web and .380" at the mouth (case specs for outside dimensions). If your die is either manufactured too tight in tolerances or you have it adjusted too far into the case it can definitely leave the mark I see in your photos. It looks like your dies are adjusted so that they are trying to size the solid (web) portion of the case. Back the die out until the ridge disappears and see if they fit your chambers. I would be surprised if that doesn't solve your problem.

Redding Titanium Carbide Pistol Die Set 9mm Luger
…carbide. The difference is in the microstructure. Viewed under a microscope it appears smooth and rounded, which presents a slippery non-galling surface, ideal for lubeless resizing of cartridges. The Redding conventional three (3) die set includes the titanium carbide sizing die, expander die and…

Related Products Redding 9mm Dies | 9mm Carbide Dies | 9mm Die Set

Good luck and stay safe.

 

[pasote]

thank you. i did back it up and it resized it and that got rid of the ring. the rest of the brass is not resized however. now I will make a dummy round to see if it chambers