Great Thread YoungGun!! These types are always entertaining to read.
Congrats and don't worry, if you want to get into longer shots, it's getting easier and easier to do with today's technology.
Personally, my farthest shot ever on anything living was around 700 yds. It was a prarie dog and it was a long time ago, before we had rangefinders and windmeters and ballistic software and internet forums like this one.
I was shooting my old 220 Swift (Heavy barrel Ruger M77 w/ Leupold 6.5-20X scope w/ duplex reticle, bedded wood stock, free floating barrel and 16 oz. trigger) I had shot alot of prairie dogs with this gun out to 400 yds previously. It would shoot 1" groups at 300 yds on days that had good conditions with pet handload.
I didn't know the range, but knew it was WAY beyond where I was used to shooting. I simply had to guess and shoot.
After the 1st shot using kentucky windage and elevation, it was obvious that it was way too far for that. So I started cranking he adjustments on the scope. I dialed up and right for the wind and fired...miss. (but I could estimate how far off I was by spotting my own shot in the scope)
I dialed up and right some more and fired....missed again, but close enough to send the dog down his hole.
I made another adjustment up and right and waited for him to come back out of his hole (seemed like forever) when he did, I fired again.....blew dust all over him. Down the hole he went again! I now knew that I only needed another couple of clicks up on the scope
When he finally came out of his hole, he saw the sun for the last time. I waited for the wind to return to what "felt like" the same as the last shot. When the wind felt right, I fired again and sent the little varmint flipping through the air! When I paced it off I came up with 697 paces two times (both to the dog and back again). My paces are really close to 1 yd give or take a little depending on the day.
Anyway, that's my longest kill to date. Hope to beat it in the next couple of weeks with a friends 338 Edge on a whitetail doe. We're probably going to shoot it at my range out to 800 and 900 yds before we go out after the deer, so we can confirm the ballistic software at this elevation.