"boolits" was the term originated and used as the name of the forum that has made casting lead projectiles the popular hobby that it is today.
They have done as much (or more) for lead casters as this forum has done for traditional muzze loaders.
It is a wealth of information for all things related to shooting lubes, casting projectiles, alloys, molds - you name it.
In addition to round ball, you will find a wealth of information on anything made of lead that gets spit out of a barrel.
The topics run deep on every piece of hardware used for casting, sizing, capping, hardening, loading or remotely related.
Go ahead and object - it's a forum a lot better know than most others in the shooting biz....
This forum has 18k members with a few dozen that are truly active., castboolits has 51k members with thousands of them actively participating.
If you cast - take a trip over there and see what castBOOLITS has to offer.