Per Taylor's suggestion I moved back to 50 yards. I had some new patching from Eastern Maine shooting supplies I wanted to test and some new Mr. Flintlock lube also.
Best I could tell the rifle put every shot where the sights were. The group is large because of the shooter. In a few days these eyes will be 66 years old and they ain't what they used to be.
At first I had some difficulty with where to hold the front sight. The first few shots I had a little white over the sight, these are the high shots. Later I held with most of the white over the sight, those are the majority of the shots. I just don't see like I used to.
For some reason my rear bag kept moving around no matter what I tried. I just never could get it to lock in like usual. I knew this would have an effect on the group but I hoped the effect would be minimal. I attribute the horizontal spread mostly to the rear bag.
I'm not at all satisfied with today's results. I called most of those bad shots and if I know why the shot went bad then I should be able to correct it. So I will try it again but probably after deer season's over and I start getting ready for turkey season.
The OP asked "What is accurate?", are we asking about the innate ability of a rifle? Or that same rifle in the hands of it's shooter? If somebody with more ability, probably younger eyes also, was shooting this rifle for a group, then I would consider this a very accurate rifle. But with me shooting it the rifle doesn't seem as accurate as I know it is.
Of course, I am very hard to please as I am driven to perfection in every endeavor though seldom, if ever, achieved. Still we are what we are.