I like using straight wheelweights as I get them for free and I have go through several hundred pounds a year. Between the 4 .45-70s that I feed (I have some friends that hunt with nothing else now) and my .500 Linebaugh, it goes quick. Fortunately one of the friends that I load for owns a tire shop! That is a great swap!
I used to mix 50/50 bees wax and StaLube Lithium grease.
However, Paco's Apache Blue is much more consistant and works better in hot weather.
Since Paco's lube is no longer available, I have been using LBT Blue and am very happy with it. I go through a lot of lube and the sticks are so easy to handle.