A mate of mine just sent me a photo he took of me firing my JP Henry trade rifle. I have been shooting this rifle for 30 years now and the ignition is still as good as the first time I used it. It is .54cal and from memory it was a kit from a company based in Los Vegas that I saw an add for in Muzzleloader magazine, I had it shipped to New Zealand where a good friend assembled it and made several improvements to it. I then picked it up when I flew over from Oz to attend that year's Mountain Man Shoot in NZ.