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Bullet Casting: From Ingot to Bullet (Page 2)

Casting your own bullets can be a simple project, but the devil is in the details.

Choose the tool you use to beat on the sprue plate carefully—no metal of any kind! When I started out, I used a discarded hammer handle. For two-cavity moulds it worked fine, but on my four-cavity moulds I ended up beating it like I was driving nails. Some casters like a dead-blow hammer. They work OK, but the plastic coating melts on the hot sprue plate. I plan on making a dedicated mallet of hardwood, heavy enough to handle the four-cavity moulds I often use. To give the head some heft, I’ll drill it out, fill it with shot and plug it.

Most casters dump their just-cast bullets on a convenient shop rag. I like to soak it in a bit of water—not sopping wet but damp—as I believe the cooling via evaporation helps the bullets cool a little quicker.

In the beginning it’s a good idea to measure and weigh your bullets. Measuring will determine whether you’ll need much sizing, if any, and weighing them will determine whether your technique is correct. For most of my pistol bullets I like to keep them within plus or minus 0.5 grains. If you are an accuracy buff with a long-range rifle the ± 0.2 grain is better. To achieve that degree of accuracy you’ll need a pouring technique that is perfect, repeatable as a metronome and an alloy that is perfectly consistent.

When you complete a casting session, leave the pot between a quarter and half full. It will melt quicker the next time you get going.

Part 3 addresses lubing, sizing and loading cast bullets. The act of putting it all together results in a much more pleasant shooting experience.

 

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4 Responses to Bullet Casting: From Ingot to Bullet (Page 2)

Don W wrote:
April 10, 2012

When I was casting for my .45 ACP, I used a single cavity mold with a Lee Production Pot. I would hold the mold in contact with the pour spout, then since I was using leather work gloves, I would simply cut the sprue off by turning the sprue plate with my hand (not sure how well that would work with a multiple cavity mold). I'd catch the bullet in my hand, put it on a folded towel to cool, then cast the next one. I could work pretty fast that way.

Ray wrote:
April 05, 2012

I do not know if this has been covered but it bares repeating. DO NOT HAVE ANY LIQUID OR DRINK AROUND AT ANY TIME. When it comes in contact with molton lead it will create steam and EXPLODE. Especially if you try to cool your molds with water and then use them.Seen it happen more then once.

Dave E. wrote:
April 04, 2012

Bill Pooley, What is your zinc formula? Zinc%: Tin%: Other%: I would like to try this too. Thanks, Dave

Bill Pooley wrote:
March 28, 2012

I am an American living in Germany and use mostly zinc and other non-ferro metals used in wheel weights as a source of casting materials.Lead wheel weights were banned about 5 years ago. My cast bullets are about 75% zinc. Lee electric furnace does not get hot enough to melt zinc so a propane contraption does the job. The end product are sized and sorted by 8 weight categories. Several years of weekly use of the zinc bullets in a stainless steel Tarus .44 special show no ill effect upon the weapon. I have recently began using zinc bullets in a 1911 Gvt issue M 1911 with no problem. So why not zinc?