The 20x Nightforce scope shows my heart beat, moves the reticle left, then right, left, then right. So I timed my shots. Really concentrated on my breath control and trigger press. Fun times.
Here's an important note: When I had my rifle out and cleaned it, I jammed the heck out of it with a patch that was too large, apparently, and I had to pound the crap out of it, first trying it on a concrete driveway with the rod stuck, then with a mallet. I wailed on the thing. It made absolutely no difference on the scope. Zero was solid in spite of the mallet work on the rod stuck in the receiver.
The NXS 2.5-20 rocks. Eyebox requires the shooter to get his position properly, pretty unforgiving, but at this point, I see no need to spend $1300 more for a ATACR scope which would be longer and heavier. It's very nice and bright, razor sharp. I'm still fiddling around with the illuminated reticle, not seeing much use for it frankly, and to me, it's not that bright anyway.
I switched over to some German surplus Mil Spec 7.62 and the groups opened up precisely double what I was getting with the match grade, but in terms Minute of Meat/Man more than good enough. I was fairly impressed. I was putting rounds into a 2-3" groups at 100 with this German stuff.
The full size Fat Bastard brake on my rifle really makes a huge difference. When I load the bipod (Harris) I can easily see each hit. I'm using a nice bean bag type rear rest and I'm nearly isolating my body mechanics from the shot as I shoot from the bench.
My trigger group is a Geiselle SSA-E and I had a bit of fun with my cheapo ammo, Maylasian surplus crap, and was working the trigger so quickly I had a few onlooker asking me if it was "automatic" ... nope, just a fast trigger finger.
As I concentrated on my cold bore shots I was pleased to be putting every shot into a very tight group.
Why is this so satisfying? I don't know, but I sure enjoy it.