Lyman Black Powder Gold Lube

[Irascible]

Any body use it? Is it any good? I stumbled upon some, but don't want to waste the time and bullets if it doesn't work as well as SPG.
I heard it was Paul Mathews formula. True?

[45 2.1]

Any body use it? Is it any good? I stumbled upon some, but don't want to waste the time and bullets if it doesn't work as well as SPG.
I heard it was Paul Mathews formula. True?

Depends on the boolit design, but really good stuff on most of the 4570 boolits.