I'll let bigbrother and ol_spark talk their rigs up, but both are custom.
bigbrother's is a 6.5x284 custom barrel on a remmy action, Boyd stock. I believe he shoots a straight 22x Super Sniper scope.
Ol_spark has a 30" Lilja barrel on a ruger #1 Chambered in a 300 Tamahawk (300 RUM Ackley Improved) and also has a 338 Tomahawk on a Remmy action now... 32" Lilja barrel. I know he's got a nice piece of Leupold glass on his.
They can get into the details though, since I'm sure I'd miss out on something.
Mine is a Stock Rem 700 LLS in a 7 RUM. This gun is producing .206" groups at 100 yards with 160 gr Game Kings (the old Style hollow points), shooting 91.5g of Retumbo. I'm not afraid to shoot a ground hog out past 700 with my setup as it's shooting under 3" at 500 yards. I probably wouldn't attempt a shot at a deer out past 800 with it, but I'm sure it can shoot to 1000 with no problems (and did I mention that it was a Stock gun?!?) I just haven't shot it that far yet. But I am confident that I could hit a milk jug out at 800 every time with my current drop chart. I've produced numerous 1 shot kills on groundhogs 600 yards and under this summer with it. Other than some trigger work done by myself, I was lucky to get such a shooter off the shelf. Unfortunately I only have 30 more of those bullets left, so I'll probably be going up to the 175 Match Kings once this box of bullets is spent. I'm sure I won't have any problem getting those to shoot though and the BC puts these Game Kings to shame!
My scope isn't the best glass, but it's affordable. A Custom-shop 8x40x50 (yes I typed that right) Tasco. Target Knobs with side focus and duplex x-hairs and you can pick one up for around $299
Ol_spark has a set of Bigeyes for easy spotting (two spotting scopes together to make one big ol set of binocs)
Here's a short video clip of me shooting a 300 RUM at 500 yards at this plate with a 3.5-14x MilDot scope, drops 2 Mills at 500. I was preparing for an elk trip last year which provided me with a 40 yards shot on a nice bull
. go figure This is a Rem 700 SS stock gun also that'll place 5-6" groups with a mildot at 500...those Remmy's sure shoot
500 Yard Clip
Good luck... this long ranging sure is addictive!