Mike,

I understand your comments about black powder.

While most of my 500 BPE shooting has been with either black or triple 7 (Hodgdon 777), I also use 4198.

If I were to take my Tolley on an extended trip, I would either load with 777 or 4198.

I have gotten very good velocity and accuracy with Triple 7 which doesn't have the issues of black powder.