I used a cheapo Traditions Hawken Woodsman caplock in 50 cal to take 10 public land elk and one deer. I got tutorial from a book by Sam Fadalla, and from internet sages online just like here.
I wound up preferring real BP over substitutes for ease and consistency of ignition.
For me Ballistol worked best for lube, cleaning, and rust prevention.
Using heavy ML bullets gave me more confidence, real or imagined over patched round balls. Although I had much fun and success with PRB's for target practice.
I was very cautious to keep cap and muzzle dry and sealed in the field. Never had a misfire hunting. Even in heavy rain.
The experience was extremely enjoyable, although field extraction of an elk carcass was still just as hard as using metallic cartridges :-)
