MClark said:
I look at these cases from the terminal end and work back to see what it will take.
1000 foot pounds is a number used as a good minimum for deer size animals. A 230 grain Berger at 1440 will give this. However it is unlikely to expand. A half moa is achievable and will keep the bullet in the vitals (with good reading of conditions).
From a rifle standpoint look at what the 1000 yard target guys are doing, 30" barrel, barrel clamps etc.
Portability becomes a big issue, do you plan on a set up next to the truck or backpacking in?
The light gun 1k benchrest rifles are almost universally 17 lb 6 Dashers. Keep in mind that they get a sight in and then most shoot very fast from there to achieve the groups that they do.
I'd argue that F-Open might be a better model because of the slow fire. Most are shooting big 7mm or the 300 WSM. Even those that shoot the 300 WSM with the big Bergers say that it took them a long time and much practice to be able to manage the recoil sufficiently. That's not "ouch, it hurts" manage the recoil, it's "oops, I screwed up and it went out into the five ring" manage the recoil.
But, there is a HUGE freakier distance between shooting in an F-Open situation and shooting in a hunting situation. No sight-in period. Bulky clothes, maybe cold/hot/breathing hard/etc, uphill, downhill, over uneven terrain. Lightweight bipod or similar rather than a SEB NEO out front. Rice bag or nothing under the back rather than a 10 lb DR bag. Hunting weight rifle rather than 22 lbs. Hunting trigger instead of a 2 oz Jewell.
I'm neither ignorant of long range shooting (when other kids were playing baseball, Beverly Spickard was my coach) nor am I a closet PETA member. I was taught respect for game animals from the time that I could walk. The respect is ultimately in a clean, humane kill. In my opinion, anyone that thinks that they have a high confidence of a clean, humane kill on a deer-sized animal at 1,400 yards is in a fantasy land. 400 yard? 500 yards? Even 600 yards? OK. 1,400-ish UNKNOWN yardage in real hunting conditions? Fantasy land.
To the OP: if you are talking about predator control, you should have said so in your original post, rather than the "all North American game" phrase that you used.
As to "so what", you are right,
with respect to game animals, it is an ethical thing. I, personally, don't think being accused of having some ethics is a bad thing. YMMV.