I have a .30-06 AI and have had it for several years. The reason why I chose to go with this was that it was something I could do with minimal gunsmithing required to the action that I had on hand and that fit into my budget for building and loading budget. There are certainly better rounds that are available now that nullifies the need for the .30-06 AI. The gains that one achieves from the rifle are mostly dependant on extra barrel length, not because of case capacity increases. (If loaded to the same pressures). The standard .30-06 in factory form is poorly under-loaded/powered and is loaded that way to be able to function in all varieties and grades of rifles that are chambered in it.
All this being said, with careful handloading one can see much improvement over the standard factory .30-06 (if done properly). I really spent alot of time developing loads for my rifle. It is a Remington 700 ADL converted to a BDL wearing a grey/black Faijen stock. It has a 26" Kreiger 1-10"twist (heavy bull sporter taper) bbl that has been fully accurized and has a Timney trigger installed. It wears a Leupold 4.5-14x44mm Mark 4 Precision Rifle scope. I have shot it out to 1000yds and makes a good rock slayer that far. It has cleanly taken Muledeer and Cow Elk out to 525yds.
The most accurate load for it is a 168g Berger VLD with H4350 and BR-2 Primers. They are loaded on the hot side and are max loads according to Quickload. The primer pockets are toast usually after the 5th loading. I average 3125FPS (10 shot average). I have also developed 190g Berger loads and 165g Sierra Gameking Loads all with H4350 and BR-2 primers.
I love this rifle and will never sell it. It is so accurate that I'd be stupid to sell it.
I'm one of those types who like to do something diffrent, I'm not a speed freak or I would have built a .300 Win, WSM or RUM. Those may come later, But Its fun to shoot and great for my current needs.
Here are a couple of photos of my baby! Sorry I don't have any photos of my targets on my computer...
This is after installing the Leupold scope.
I wouldn't necessarily recommend building one as a long range build, but this one was never meant to do that. The 190g Load can work as a long range hunting load, but I try to be conservative with this rifle. I have a 7STW for the long range shooting.