I think that is honorable of you. Please come back and shoot. It is all in fun anyway!
This is not an official competition, so the fact that nbkky pulled off that one target being perfect (even with one extra shot which was also perfect), I would give it to him for that. Sure, he would have been disqualified in a real match, but this is not a real match. If you don't count that one target with 2 shots, it is also still a 20. There were no rules in there for extra shots, but I totally get how that would work in a different scenario. The guy didn't miss a shot!!!
Otherwise, if it had been a tie, I would most definitely had gone back to tie breaker rules, as that is what they are there for. I just don't think this one was a tie. But both guys shot great!!!!!
I was hoping to get a new scope or a new 22 air rifle to get back into this, but with wage cuts, I won't be spending any money any time soon. I will have to keep shooting my rifle that does not qualify.