New Dies x New Brass = Gouged Cases?

[Fig.14 Frown]

Hello All,

I just bought a set of Hornady Custom dies, and the full-length sizing die is leaving these nasty gouges in the necks of my brass.

The casings are virgin Lapua brass, and lubed with RCBS case slick spray.

Has anyone else seen this before? Was it fixable? Should I return my Hornady dies and buy a Redding set with bushings?

 

[Haney]

How did you clean your new die ? I would use a different cleaning agent and try it again .

 

[spife7980]

You galled brass into the die neck.
Outside deburr of the case mouths will help prevent it as well as cleaning your brass and most importantly is using adequate lube, type and quantity play together, the worse quality the more you need.
I would try wrapping a small dowel in paper towels, wetting it in lapping compound and sticking that in your drill so you can try to clean the remnant brass out of the die neck.

 

[AllenOne1]

So you had a set of dies custom made based on your reamer print or fired cases. But, these cases aren't fired out of your chamber, so they may be doing excess sizing compared to what they will do after they are fired from your chamber.

As spife said deburr the case mouth and lube them evenly. You might want to look at a different case lube like Imperial, I'm not familiar with the case slick spray.

But the first issue you have to correct is getting any brass out of your case neck. This may include sending it back to Hornady to have it cleaned and re-polished.

 

[spife7980]

So you had a set of dies custom made based on your reamer print or fired cases. But, these cases aren't fired out of your chamber, so they may be doing excess sizing compared to what they will do after they are fired from your chamber.

As spife said deburr the case mouth and lube them evenly. You might want to look at a different case lube like Imperial, I'm not familiar with the case slick spray.

But the first issue you have to correct is getting any brass out of your case neck. This may include sending it back to Hornady to have it cleaned and re-polished.

Hornady "custom" line is just the generic non bushing sizer and universal caliber seater

Custom Grade™ Dies - Hornady Manufacturing, Inc

Custom Grade™ Dies Hornady® reloading dies represent the finest in machined craftsmanship. Precise machining allows accurate reloading by offering easier adjustments, better alignment and smooth functioning. With one of the finest intern...

www.hornady.com

 

[straightshooter1]

View attachment 8438531Hello All,

I just bought a set of Hornady Custom dies, and the full-length sizing die is leaving these nasty gouges in the necks of my brass.

The casings are virgin Lapua brass, and lubed with RCBS case slick spray.

Has anyone else seen this before? Was it fixable? Should I return my Hornady dies and buy a Redding set with bushings?

You galled brass into the die neck.
Outside deburr of the case mouths will help prevent it as well as cleaning your brass and most importantly is using adequate lube, type and quantity play together, the worse quality the more you need.
I would try wrapping a small dowel in paper towels, wetting it in lapping compound and sticking that in your drill so you can try to clean the remnant brass out of the die neck.

this ^^^^^

I ran into this same kind of problem last year. Upon looking at the interior of my reamed Forster die, which has a small vent hole for lube exit, with my bore scope, I found that vent hole had an edge on it that shaved some brass off and the shavings accumulated on the inside. Normally, I clean my sizing dies right after use (sometimes during use for large batches), but to get these shavings out too extra effort . . . especially to get the small vent hole clear. Now that the brass remnants are gone, it's all good now.

So like spife7980 suggested, you'll need to find a way to remove that remnant brass out of your die to solve that problem.

 

[AllenOne1]

You galled brass into the die neck.
Outside deburr of the case mouths will help prevent it as well as cleaning your brass and most importantly is using adequate lube, type and quantity play together, the worse quality the more you need.
I would try wrapping a small dowel in paper towels, wetting it in lapping compound and sticking that in your drill so you can try to clean the remnant brass out of the die neck.

You're probably right I read it literally and jumped to custom dies rather than custom grade

Custom Dies - Hornady Manufacturing, Inc

Custom Dies Manufactured to customer's specifications. Hornady® Manufacturing offers the advantage of making custom dies to your specifications. These custom manufactured dies are available in either our Custom Grade™ or Match Grade™...

www.hornady.com

 

[918v]

I use sweets 762 solvent for this, get some in there and spin a bronze brush with a drill.