• Quick Shot Challenge: What’s the dumbest shooting myth you’ve heard?

    Drop it in the replies for the chance to win a free shirt!

    Join the contest

How do you guys Clean your FL dies?

NamibHunter

Desert hunter
Full Member
Minuteman
Dec 26, 2018
1,146
577
Ordered a custom honed Forster BR full length sizer die. Instruction manual has two comments about brass shavings from trimming, chamfering or deburring imbedding in the steel die (or sizing ball) and causing galling and presumably a sticky case situation or a skew neck (excessive runout).

DA7E164E-A81C-4D77-A8F0-5ADF7997E3ED.jpeg


Followed by cleaning instructions that hint at removing brass from the inside of the die:

FE11DFC6-C8F1-4FDF-B799-7AE76A9C41E9.jpeg


Do you guys use copper remover (barrel cleaning solution) every time after finishing the sizing of a batch of brass?

I have never done that before, so curious what your opinions are.
 
Last edited:
If new wipe with Hoppes on a long wood stem Q-tip to clean any manufacturing oil.

Use it.

When storing clean with Hoppes and a long wood stem Q-tip.

My dies are SS so rust is not an issue.
 
I just did mine this weekend. Redding bushing die, mandrel die and micrometer seater.
1. disassemble die.
2. blast with brake cleaner.
3. Nylon cleaning brush with Boretech, then a patch.
4. light coating of oil when putting back together.
5. light coat of case lube when not in use and store in a ziploc bag to prevent rust.
 
  • Like
Reactions: PJC and NamibHunter
Took them apart, filled the inside with OneShot foam, and let it sit for a few hours. I thought i saw a tinge of blue, but wiping up the liquid that dripped out with a white paper towel, it seems it is mostly carbon residue.

81E24699-CC0E-45CA-8B5D-2633F8435FE7.jpeg


Maybe i have too many sizing dies... 😊
 
Last edited:
Btw: OneShot leaves a somewhat sticky residue (anti rust layer) and you can easily get a stuck case when you start resizing again. Almost had serious problems! Need to clean that out properly, or better yet use Hoppes or some other copper remover.
 
Just to close off the thread: This is the text on the Forster web site on the topic of brass-on-brass galling occuring inside the sizer die:

Tip - To keep the inside of your Dies scratch-free, ensure that the outside and inside of your cases are free of powder residue and other debris, case necks are deburred, and the Die itself is kept clean. This precaution also applies to the “E-Z” Out Expander Ball on the Decapping/Expander Assembly, where brass chips and other debris may inadvertently be transferred to the case and Die neck. Chips that result from trimming and deburring, or a case that has not been deburred, are especially damaging to Die interiors. These chips can become embedded in the Die interior. The resulting brass against brass effect “galls,” or wears away, minute pieces of brass on the case and gets worse with each use of the Die.”

from:

Thanks for the feedback and advice. Much appreciated!

Case closed.
 
Last edited: