It took me almost exactly 1 year to do this...and 600 yards is the "long range" it was built for. It started out like this...new Winchester Ultimate Shadow in 30-06, and a cheap Nikon 3-9x40. First I upgraded the scope...to a Vortex Viper HS 4-16x44 and put it in TPS super low rings.... Then I got a McMillan stock, the Winchester Supergrade model. Then I bedded it...fully...it was my first time bedding a stock, never knew it was so much work to get the fit just right (center, cant, level) Now its finished...and will make its first hunting trip in the morning. It was a decent shooter before...but now, this rifle will shoot any ammo you feed it into lil tiny groups...and to the same point of aim (@ 100 yds), regardless of bullet weight. I've shot reloads with 150 SST's, 165 AB's, 168 BT's, and 175 Berger VLD's...every single load hit 2.75" high at 100 yards (sighted in for 250)...I fired a 5 round group that measured barely 1 MOA, using 5 different bullets (one of each from above and 1 Remington factory 180 grain CoreLokt load). My 168 grain BT load shoots .3" The 150 SST's shoot .7" The 165 AB's shoot .5" The 175 Bergers shoot .3" Factory ammo... Winchester cheap stuff...165 grain shoots .7" Remington cheap stuff...180n grain shoots .5" Winchester PowerMax Bonded 180 grain shoots .4" (this is really good factory ammo, also shot well in this rifle before bedding) Like I said...after bedding, it'll shoot anything you feed it...before bedding, it shot pretty bad with most factory ammo, and pretty good with some reloads...now it just plain shoots! I went to the range I recently joined the other day...and was making 600 yard head shots (steel heads, steel silhouettes shaped like an upper torso) even with that cheap factory ammo. I was too busy shooting to take any pics...but I am a happy camper!