Problem solved
I went to the range, cleaned out the breech plug and the gun fired well. I was getting some fouling on the outside of the breechplug with the triple 7 primers, but not much with the CCI. The problem was the presoaked T/C patches that were loaded with solvent. They were soaking the breechplug. Sometimes the pellets were dark from being wet. I twisted them hard to drain all the solvent out and out of the whole day had only one misfire and one hang-fire. I was using Triple 7 powder and Blackhorn powder with CCI primers. The gun was shooting 1-1.5" groups at 50 and 100 yds; 100 grain loose and 250grain shockwave sabots. I want to thank all of you for taking the time to offer helpful hints. The issue ahs been resolved. I now feel comfortable hunting with it. Believe it or not I think the gun shoots better with the triple 7 loose powder than the Blackhorn with a CCI primer in both cases. I now have 2 tubs of Blackhorn and 1 of Triple 7....I intend on using all of it soon. Thanks again everyone.