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Trent

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Reply with quote  #1 
I have an issue that plagues me when reloading my 30RAR. I use the Redding FL dies and seems like the only way I can avoid getting dents in my shoulders is to go EXTREMELY slow. It seems obvious to me that they are compression dents from trapped air in the die. I use either Dillon's spray lube which is very thin, or I use Redding Imperial Die Wax applied very very thinly. My thought is that when I go really slow it gives the air a chance to seep out, but when I go normal speed the air compresses and the case shoulder caves in.

I called Redding and asked if I sent in my die if they would machine a hole in the die like other die manufactures have for excess lube to escape. In my case it would allow the air some place to escape. They said they don't do those holes because it is a step that other manufactures do to cover inherent flaws in their design. He worked with me over the phone to see if I had the die set right. I use a case gauge and we sized a couple cases and it did seem like I may have been over sizing the cases slightly so I screwed the die up a tiny bit and got a few cases with no dents. I thought that was fixed and I thanked him. Then the problem came back right after I got off the phone. Baahhhhh.

Anyone else having this problem? I lube extremely lightly so I know it's not excess lube.

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olyinaz

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Reply with quote  #2 
One possible way to avoid this would be to remove the decapping stem from your die (do decapping as a separate step) as it would allow a gas exit path.  Also, some sizing compounds don't get along well so perhaps clean the die thoroughly and stick to one sizing lube.  That's all I've got (haven't seen this issue with my RCBS dies) - there are other more experienced reloaders here who might have better suggestions.

Best,
Oly
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Trent

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Reply with quote  #3 
The air is getting trapped on the outside of the case so unfortunately removing the decapping stem/ball doesn't effect the problem (I tried removing it to rule it out). The "gas seal" happens when the outside of the neck and the shoulder/body junction of the case make a seal at the same time. At least that's what it seems like to me.

It happens with each lube by itself. I clean the die pretty regularly. It seems like mostly an aesthetic issue and doesn't effect accuracy. I just hate having dents in my cases when people are interested in the cartridge and I go to show them off to them.
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kklatt450

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Reply with quote  #4 
I've got rcbs s/b dies for my 30rar never had this problem even with not being real careful with rcbs lube. But with my grendel using rcbs lube I was wrinkling case a lot so I switched to imperial case lube and making sure I don't get any on the neck I dip the neck in imperial dry lube problem gone
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olyinaz

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Reply with quote  #5 
Man, that IS annoying Trent - I'm out of ideas.  I use Imperial lube and/or Hornady spray on lube and I've not had the issue with any caliber/chambering thus far.

Oly
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Trent

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Reply with quote  #6 
The dry lube might be worth a try. Maybe it won't allow such a good seal between the case and the die.

I think the rcbs dies don't have this issue because of the little hole that they drill into the side of the die. I'd try mounting the die into my mill but the dies are hardened so i think I'll forget that idea.
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