How hard is it to do and what equipment would you recommend for a beginner? I've seen a couple of electric melting pots, is this the way to go for modern efficiency? I know you can melt lead over a campfire so I'm not talking about historically correct, just something for someone who lives in the suburbs to save a bit on the cost of range and plinking ammo. I have bought some minnie balls for my 1861 musket and they are pricey!
Yes commercial Minies are pricey! And the one time I bought them they were made with hard lead, not good. It's not hard to cast your own, go for it!.
But for Minies you want the lead hotter than for round balls, in order to make the lead fill the little grooves in the mold before it hardens. And "drown the mold", that is keep pouring for a little after it's full, because cooling lead shrinks and needs more hot lead to draw in after it. Otherwise you get voids.
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You don't need to think about home-cast as just "plinking ammo". You can produce balls as good (consistent weight) as commercial sources.
I began with a low-end Lee electric pot and used it for years before upgrading. Do buy the heavy Lyman ladle, (Because the little steel spoon you get with the lowest price Lee pot will not be adequate for Minies or even for larger round balls. - I just use mine to skim crud off the top of the melted lead.)
I recommend buying a casting thermometer and a Lyman ladle if you are going to do Minies.
Other than that - your mold of course. Maybe a large tile or two to put your lead pot on, to keep the heat off your workbench. A cigar box with some cloth (I use burlap) in it to knock the cast balls into, because hot lead hitting a hard surface may deform. A stick to hit the sprue cutter with: scrap 1x2 or a hammer handle will work fine. Leather palmed & fingered gloves, you can get those inexpensively at a hardware store. Keep a pair of needle nose pliers handy to pick splashed lead off of your mold or out of the hole in the sprue cutter. You can use a candle to smoke the inside of your mold before casting, but I use a commercial mold release now. Most of this is stuff you may have around the house.
Some swear by bottom pour pots, others swear at them. I now use my old bottom pour only for casting mortar balls, because those need more lead than the Lyman ladle holds.