You didn't mention anything about other firearms you own or calibers. Given that you mentioned the word "RANCH" more than once, carry via horse back can be cumbersome with bolt actions and pumps.
The only firearm I own is the one I mentioned in my first post, a .22 pump action long-rifle. The ranch is my girlfriend's grandfather's. No horseback, we go by foot. He owns quite a few rifles, shotguns, handguns, limited edition series, etc. He has a 30-06, a 12 gauge, sawed off (18 in barrel) 12 gauge, 20 gauge, 30/30, .22 long rifle, .308 bolt action, a custom made .45 ACP with red-dot sights, a 9mm Glock 19? (I forget which Glock model it is), and a few other miscellaneous guns that I'm probably forgetting.
Considering that this ranch is a good 6.5 hour drive from where I live, I wouldn't consider any of these rifles readily available for my use. One day I'll own my own set of Brownings, a .308 and a 30-06 from my uncle, but that won't be for quite some time.
I haven't been into long-range target shooting simply because I don't have the gun for it. It is definitely something that I would enjoy though. Most of the time when I go shooting I take my .22 to a 50 yard or 100 yard range and go at it from there. A 100 yard shot for an iron sighted .22 long is quite a long shot for me though, definitely good practice.
I'm looking for something that's good for long-range target shooting and then I guess big game hunting. From what I've read a 30/30 (assuming I can make the shot) would be enough for that, or a .308 would also get the job done, correct? The blackbuck I killed last week was with a 30/30 from about 90ish yards out. I got a spine shot on it to take it down. No meat damage at all, went in the upper back, hit the spine and the bullet embedded in the liver.