As you say, that first shot was perfect. That's because it was the way I had it adjusted for hunting, and I generally have all of my guns sighted for a cold clean barrel first shot.

That particular target was the first one in a range session in which I played around shooting at 150, 200 and 300 yards. I wanted a "dead on" 100 yard adjustment at the start of the game.

Here's the 300 yard target.



EDIT: If you're wondering why that 300 yard group is so far to the right, the scope mount is offset a bit left of the center line of the bore so the hammer will clear the scope's bell housing. That causes it to shoot about 3" to the right at 200 yards and 6" to the right at 300 yards.

I've always wondered if that could have been a two or three inch group, and whether those two lower right shots were the gun's fault or mine.