I agree with the 10x as a minimum for 1,000 yards, also. I use a standard, straight 10 power just to stay in practice for 'just in case'. There will be compromises for any decision made which has to encompass such a wide range of activities. No one scope will accommodate your needs perfectly and the scabbard could be a problem for anything like this.
But given the choice for a reasonably compact long range scope for both hunting and longer range steel, I have switched to these. Actually, I use the RZ1000 in the Zeiss but the 800 would suit you better I think.
Zeiss Conquest HD5 5-25X50 - RZ800
Swarovski Optik Z6 5-30X50 BRH Riflescope
Yes, the Swarovski is expensive but you will not find better glass and a more compact design which will work under both sets of circumstances that you ask for. Swarovski has put their absolute best foot forward in order to maintain the highest standards for scopes released into the U.S. Read the reviews.
Regards.