The Old RCBS Melting Pot

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Three years ago I tried to cast some bullets with my 1990 vintage RCBS melting pot, the 20 # green monster. The metal did not get hot enough to become fully melted. The range scrap lead looked like oatmeal, wouldn't pour out the spout, and I had to mount a propane torch to apply heat to the metal in the pot. I was using a 15' 12 gage extension cord on an outside deck outlet. It was a miserable experience with several questions: Melting pot "worn out" - new one costs almost $400, Zinc contamination in 200 pounds of melted range scrap making it "worthless" for casting bullets.

Well now it's good news. Last Wednesday I polished the inside of the pot with a very coarse Scotchbrite buffing wheel mounted in my 1/2" drill, cleaned out the pour spot with a drill bit, put a dab of valve grinding compound on the valve stem, and turned it slowly with a drill while it rested in the pour spout. Plugged the pot into a dedicated wall outlet in the new garage, and dumped in 20# of melted lead from new range scrap bullets. The pot doesn't drip and metal flows easily. Ended up with 175# of new ingots.

On Thursday, I started casting bullets with a new Lee 6-cavity 44 mold. I started with the pot set on max temperature setting. As I continued to cast , I had to lower the temperature setting to less than halfway, and metal continued to flow smoothly. I ended up with 75 pounds of cast 44's, (two 3# coffee cans full). With a new garage, new electrical service, and new outlets, the old pot worked like gangbusters.

Friday produced a coffee can full of 45 SWC for the 1911s. I got this retirement thing figured out -- melt, cast, reload, shoot :D :D.

My problem was voltage line drop through the house wiring to the deck outlet and the extension cord I was using. This house has been an electrical challenge for several years because of lack of outlets and circuits. The original wiring was multiple outlets with a 20 amp circuit breaker and old 12 gage wire.
 
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As I read this I thought "that sort of voltage drop over 15 feet? Odd to say the least", until I finished the paragraph. Glad you found the culprit. Not glad to hear about your house wiring.

Oh and the phrase "1990 vintage" gives me the willies...:eek:
 
I thought you could slowly heat lead to get the zinc out of it? Am I misinformed? I do know lead melts lower than zinc.
 
My pot is from 1983 and still going strong (fingers crossed, knock on wood:D). RCBS will refurbish the pot if you need to have work done on it under a very generous warranty. My cousin was having problems with his with the thermostat, so he contacted RCBS and they advised him to send it back. When it was returned it was like new or close to it.
 
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