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DougGuy:

The more I think about it, the more I believe you and the others recommending a new barrel are right. I’ve always wanted to try a KKM barrel so, while it’s a month’s wait, I might be...

Well I repeated the bore slugging in all three barrels, (twice more in the problem barrel), all with basically the same numbers.

I don’t think it’s the alloy or coating, since I don’t get leading...

So I had nasty leading towards the muzzle along with keyholing and horrible accuracy in a new 9mm pistol barrel, using an alloy, bullet style, HiTek coating and load that had worked just fine in my...

Turns out I didn’t need quite so much diameter. Even without vise compression the 0.358” slug left a generous ring of swaged lead on the trailing end of the slug. Looked to me that I got the full...

Vice compression has gotten the shank diameter up to ~.365”, which I think should do the job.

I used a groove less bullet meant for coating, and figure the ogive will make it easier to start than...

Cast some pure 9mm bullets to use for bore slugging. Among several possibilities I need to investigate for leading in a new pistol barrel is a change in bullet to bore fit.

Got the idea here to...

Many tens of thousands of commercial and home cast HiTek coated bullets through my Gen 3 polygonal rifled Glock barrels without leading issues.

Now the new, more conventionally rifled Marksman’s...

The hassle factor of scrounging, transporting and then processing scrap lead is high. That creates a market for selling the product ready to go. Of course you’ll pay more, so it’s a back and forth...

Iirc it was member Ausglock who commented that he saw his lead levels rise when in contact with the (ime, very) dirty wash water while bare handed, with subsequent improvement when gloved....

I’m not a mold maker, but maybe a given cherry, designed with a certain amount diameter shrinkage in mind, can bore a cavity to slight different depths, giving different weights?

And just how...

I’ll be the fourth to vote for VihtaVouri N320, and will add that it meters very well.

Expensive, although just about all powders are at nosebleed prices these days.

I gotta think that somebody as experienced as Tom, who machines custom molds using sophisticated design software and cnc machine tools, knows what’s possible to make (“your design will cast between...

Maybe I read into it differently from what you got from the same statements, but I believe the cavity volume determines the weight of alloy the cast will have, and that Tom can alter that volume to...

I think member BNE, who has ready access to lab grade XRF equipment, ran an experiment with a very hot pot of alloy where he continually skimmed off the surface as crud formed, but never returned it...

Like you said, tradeoffs.

I got into wet tumbling to clean brass in an effort to avoid inhaling the potential lead exposure from the dust in the media, present despite mitigating measures. Then I...

If you go to the FAQ, or to the actual mold specifications form when ordering, you can specify the alloy you will be using and Tom will actually alter the machining of your mold so it will drop...

That technique has been well known for years. Variants are to use car wash and wax instead of Dawn dish washing detergent, which adds a wax shine and a bit of tarnish resistance, pure citric acid...

Size and appearance wise, I’d say it’s a radioisotope container. All the ones I’ve gotten and analyzed that weren’t pure lead (and those were uncommon) were around 3% Sb with little or no tin.

If...

You’re describing hardball alloy, often used by commercial cast bullet manufacturers. Rumor has it that, like rubbery, tasteless tomatoes bred to ship well without becoming tomato sauce in transit,...

IIRC, HiTek metallic colors have actual metal flakes that are suspended in the liquid coating and are hardened into the resin as it cures. The metal particles provide the color and some heat...

I keep the lip and gasket clean. That and the occasional use of a bit of lubricant on the gasket makes it easier to snug down the lid (by hand) to avoid leaks.

My APP is attached to a length of 2”x3” that has pre drilled bolt holes, allowing me to clamp or bolt it to a bench top wherever I want to use it.

I haven’t ever used the catch bottle: I process...

I’ve never understood why some are obsessed with having shiny bullets. My aluminum molds cast best when the boolits have a slight matte frosting on them; I see that (running the PID at 730°, even...

So if you don’t like the look that comes with higher alloy temp but don’t get the fill out you want at lower temps, maybe a bit more tin is in order at those lower temps?

I’m no black powder shooter, but I do know that, for a given weight of powder, grain size affects the available surface area when the powder starts and then continues to burn, with smaller burning...