It's always tough to shoot at a target you can't actually see.
We have a Buffalo Target at the club set out at 100 yards. And yes, actually hitting it is very fun.
Matt - remember (and I'm serious), you did it once and you can do it again!
Bob,
The funniest group.......and this also not an exaggeration was first arrow at the highest point on the celotex that you could get without hitting the frame and each arrow was roughly 8" under the previous one until I drew a perfect straight line down the target from very top to very bottom. LOL[8D]
The only good part was that if you drew a line through all the arrows it was dead center of the X'ring.
I was like "A little lower.......a little lower.......not bad found it.......ooops too low........ahhh crap.........ahhhhhh rat farts I give up."
Hey that has to be harder than simply putting them all in the same spot right?

(My shooting buddy was impressed anyway)