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Have you tried a larger diameter bullet with a soft wax based bullet lube like the NRA 50/50? Have you done anything to condition the barrel before shooting the lubed bullets? It sounds like either...

I do not doubt your observations, just have to wonder why when the major material is either pure lead, or perhaps lead-tin-antimony one would suddenly find a container made with a calcium alloy. I...

Unless you actually had the dross scanned, I would be hesitant to say it was contaminated with calcium. The site referenced to help ID isotope generators did not mention calcium being used. While...

Just received a reply from MidSouth and they are fine after a scary experience. They will put a notice on their main page soon. They appreciated the concern.

When I first went with the wet pin cleaning method, it did seem like a lot of extra work. Later on, I tried it without the pins, but still used the Armorall car was and wax plus lemishine. For...

As Kevin mentions, the cooling rate does affect the hardness of an ingot. I was given a good number of 5 pound ingots with the comment that the person was not sure what the alloy was in the ingots. ...

By much smarter members than me.

https://castboolits.gunloads.com/showthread.php?107059-Annealing-lead-bullets

Seems like the heat of powder coating would anneal the alloy back to original hardness. Is there another step in the process not mentioned?

https://castboolits.gunloads.com/showthread.php?44704-How-to-use-pure-lead&highlight=casting+pure+lead

"Advanced Search" works really well. "Stinkies"?

MOST cast bullet molds predate powder coating. Especially molds with bore riding noses, or the long tapered noses. Perhaps the TC or SWC are not as likely to require deep seating of the bullet to...

Porthos, while that will speed up the hardening of the sprue and cools the sprue plate, that does not allow the fluid melt to be drawn into the mold cavity as the casting cools and shrinks. With...

Result of "advanced search"

https://castboolits.gunloads.com/showthread.php?255896-Oven-treating-powder-coated-bullets&highlight=heat+treating+powder+coated+bullets

https://castboolits.gunloads.com/showthread.php?410426-XRF-Gripe

XRF scan will give you the answer. The rest will be educated guesses, some more educated than others.

Most people new to casting are well served by a known casting alloy. As you gain experience, you might find that for hunting type loads, a softer alloy will better serve your needs. That is just a...

Delkal, the COWW are wet or have been wet. Why invite the tinsel fairy? Not a good idea to add cold metal to molten metal. Please be safe.

I just rub on a little bees wax on both sides of the rubber ring. Sort of lubricates the ring, easy to tighten enough to not leak.

It is not at the bottom of the page but would be a few lines lower than the delete box and says something like "Delete this message".

If you decide to use pins, make sure they are below to surface of the wood or you might get a burn from the hot pin.

Perhaps a rough casting and then file to final form? Or proceed with your mold and use a slow centrifuge to force the molten metal into final form.

Looking at the illustration in post #37, I can see that the sprue puddle of each individual cavity is perhaps too small to remain fluid long enough to feed molten alloy into the cavity as the alloy...

This is probably the sticky that is being suggested.

https://castboolits.gunloads.com/showthread.php?121607-Setting-up-for-boolits-in-a-new-9mm

I process a fair amount of range brass with a range of dirt and oxide formation. I use both corn cob and walnut media. I notice the dull look when the media needs to be changed due to build up of...

Hmm, most of the references I see say that lead melts at 621 F. Typo?

It was mentioned that the "linotype" the OP had was in letter form so it is not lino but perhaps monotype. When you are spinning your wheels testing unknown blends and alloys, you would do well to...