I am using a Lee Pro 20# furnace with bottom pour. Up until this point [which hasn't been long], I have been casting with Lyman 2-cavity molds and using a ladle. No problem except the volume per hour is rather low (probably about 75 bullets per hour with an occasional break for fluxing, bathroom, etc). I would like to buy 4-cavity molds for my most used bullets and use them. However, Lyman are IRON molds and get heavy after awhile (I get tired of casting in about 3 hours), so I can only imagine a 4-cavity being worse. I haven't used the bottom pour on my furnace for anything but ingots. I know a lot of people cast their bullets exclusively using the bottom pour and never use a ladle. How well does this work with the Lee Pro 20? It seems to me that one may be constantly adjusting flow rate, missing the mold and making a mess and of course I could still end up holding the weight of the four cavity mold while doing this.
Does anybody else out there use Lyman 4-cavity molds and the Lee furnace using the bottom pour spout? Is there a method to the madness? It seems that a Lyman Mag furnace would be a great alternative being it has guides to push the mold through. However, that thing isn't exactly priced to move and there isn't anything wrong with my Lee furnace [although I could just use it for ingots if the best path is to replace the furnace].
Thoughts? Should I ladle 4-cavity molds? Use the bottom pour? If so, what is the best method with the Lee furnace?
This might seem like a no-brain question to somebody who is already casting that way, but I don't want to invest in several 4 cavity molds to find them unwieldy to use over any length of time. I know the option to use cast aluminum Lee molds is out there too ... but I am not too up on the tumble lube (messy, stinks and takes unnecessary time as well as covers the entire bullet, also unnecessary) and most of their other molds don't really match Lyman or RCBS top punches for my Lyman 4500 sizer.