Decapping Die ruining brass

[chuckshoots]

Hey guys,
So I went to decap some brass (redding type s dies) and have not had this issue like this where the die is pulling off a bunch of brass with the removal of the case from the die. Should I shorten the length of the pin body? I lubed the cases with imperial die sizing and love the stuff. This has only happened at odd occruances as I have been learning the ropes but now it is essentially every time. Granted I only did it about 4 times, ruining each piece before deciding to consult the calguns crowd.

any suggestions on how to make this not happen? Check out the case mouth and its shape int he picture as well as the brass ring around the die piece ( sorry I am not good at the terminology yet), is what was removed from the case mouth.

[NiteQwill]

What press are you using?

[chuckshoots]

It is Hornady brass once fired.

[Sub95]

raise the de capping pin up so it just come out the bottem of the primer pocket in the brass

[stilly]

Wow I have no freaking idea what is causing this and yet I am going to give you input. (cause I want to save your brass THAT much!)

First, STOP decapping, take out the die and inspect it inside and out. Then consult the instructions, reset it and put it back in and double check your work to make certain that you have it setup correctly. Redding makes good stuff and this should not be happening HOWEVER, I have heard something about needing to lube the insides of the cases with certain dies. Maybe you need to lube the insides also? Have you done that yet?

[G-forceJunkie]

Are you crashing the neck into the decapper nut? What size neck bushing are you using? What decapper cap are you using, the silver one or the black one?

[Sub95]

you can see it went in, but it went down to far and crushed the neck down and pinched it closed.

[chuckshoots]

I am thinking that it might be that I have to extend the pin rod farther down and back the body of it out more? Maybe the brass is striking the body? I have lubed the inside, but will of course put extra care into making sure the neck is lubed next time to be totally sure.

Hopefully I will do some reloading tomorrow so I will start from step 1 in the set up instructions to check everything. It tends to go easy in the up stroke but be tough on the down stroke.

[SandDiegoDuner]

I think g-force is on the right track... OP are you using this die with a bushing? If you aren't that is the reason why this is happening. You are crushing the mouth of the brass on the adjustment nut for the decapping pin and causing it to expand out. Then when retracting the brass it is ripping this expanded mouth off. If you have the correct size bushing you don't need to use the inside neck expander when sizing brass.

[khw9mm]

Redding type S has an expander button that's right above the decapping pin inside the die. If you're using it with a bushing, you're over working the brass thus seeing the problem that you're having.

Your best solution is to either remove the expander button and replace it with the standard button (if I can call it that) that comes in a baggie with your dies or get a larger bushing size. Or both.

Decide how much neck tension you want then determine correct bushing size. To do so, measure the neck of a loaded round and subtract 0.001" to 0.002" for bolt guns and 0.003" to 0.004" for semis.

Good luck.

[chuckshoots]

Ok thanks guys, i will try that all out once I get time to hit the reloading bench again.

[stilly]

did you redo it yet? Was that the problem?

[chuckshoots]

Yes I was able to go fix the problem and by putting the bushing in (rookie mistake indeed) the brass formed perfectly and was not damaged at all. Thanks for te input guys, was abl to get 60 rds loaded up.