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I use a sharpie, but I've noticed that over time it does tend to wear off. I'm probably going to get the metal stamp set like was mentioned above.

For larger quantities, I just toss the ingots...

According to my recollection (which is in agreement with Wikipedia) a ratio of 20:1 means 20 parts of lead to 1 part of tin.

Quoth the wiki:



So the percentage would be 1/21, or about 4.8%

I'm interested in the secret mix, too.

Depending on what the final cost is, I'd probably be interested in purchasing a liter or two.

The coating's flexibility is what I think may provide the advantage for a softer alloy. The skid would create a modest deformation, but the coating wouldn't have to bear the brunt of this force on...

I think the problem with those 45ACP's is actually from the alloy being too hard for the job at hand. I tested them at a whopping 20.3 BHN tonight... :roll:

In fairness, it was an experimental...

Interesting!

Which Sandstrom product are you using? And, perhaps of equal importance, where are you able to buy it?

I agree -- it is something unique to the alloy or the powder/load. The powder and prep methods were the same as I used for the other calibers.

Thanks for the tip on the skidding! This was a...

Some pictures from testing today:

Our bullet trap made from Kitty litter container and waterlogged catalogs...
http://i1110.photobucket.com/albums/h443/Orochimaru308/Coating/BoolitTrap.jpg


...

Initial tests of my yellow 38 SPL bullets was successful. Pictures are pending, but no yellow stuff was deposited into the barrel.

Some 9mm goodies that are going to get shot tomorrow (along with...

A friend just brought me a gift -- a commercial polymer coated bullet made by a company called Bayou Bullets. A member at our gun club had some and gave him one to look at. The gentleman who...

If the sizing operation removes coating, then flying down a barrel surely will! The sizing operation is a good initial test of the thickness and durability of the coating.

I resize my bullets...

And here are some pictures of them loaded up and ready to go...



http://i1110.photobucket.com/albums/h443/Orochimaru308/Coating/Tray-Small.jpg



...

I did a few more tests today. I don't have any pictures yet, but I thought I'd report what I found.


Unlike previous efforts, I actually did some minor surface prep prior to powder coating. I...

This was an Eastwood powder for which I do not have the MSDS and their site is not forthcoming with specific information on the powder formulation. Just based on their wording about UV and Fuel...

For powder coating, the recipient surface must be at an electrical potential that attracts the charged paint particles. In this case, the objects must be grounded. Lead *is* a conductor -- it just...

Here are some results from my initial powder coating experiment...

This is a tray of boolits (cast a few days ago) of which I did nearly nothing to prep. They are on a small toaster oven tray...

I made a few attempts at powder coating...

The method that seemed to work the best was to place the bullets, base down, on a cookie sheet lined with aluminum foil. With the sheet/foil grounded, I...

Here is the thread (3+ years old) from the guitar effects site I was referencing above.

Remember -- these enclosures are built for looks as much as function, so I put some extra steps in for...

A couple of quick notes about powder coating, as it is something I have some experience with... One of my other hobbies is making guitar stomp boxes (effects pedals), and I powder coat the aluminum...

I figured either a carbonate or a base would precipitate it out. Carbonate or bi-carb was what we talked about in the electronics world for neutralizing the leftovers from PCB etching (which also...

Good points. I've just been using copper I have sitting around -- leftover wire from a circuit install, copper sheets left over from an electronics project, etc. I have no idea how pure it is...

Yes -- I understand what you're saying about Citric Acid to acidify the electrolyte. I've seen some people use H2SO4, but I don't have any handy!

One person (from another forum, I forget which)...

Ah -- but that is half the fun! ;-)

I *love* a good challenge!


Surface prep is an odd thing when it comes to plating. I've done a couple where I started with commercial bullets (all lubed...

Right now, I'm running Copper Sulfate as the solution. I'll give citric acid a try, though, and see how it works.

At 400ma per bullet, I usually let it run about 15 minutes to plate to 2 mills...

I pickle for 5-10 minutes after a similar length of time degreasing. Sometimes longer, but I've not been able to correlate longer than 10 minutes with better..

Circulation and heat will help the...