@Scrumbag
I have a 2.5x (pretty close to 1.8 I would imagine). At 25 yards on a standing or walking animal, I think its OK - full but OK. I've finished off a buck deer before who stood up again in a thicket 10 feet away from me --- total brown blur.
Like your cheek weld concern, personally, I think having 1 sight system is the way to go. If you are a scope person, take your chances with a 1x. If you prefer red dot or iron sights, know your limitations. Yes you could "plan" on removing your scope after the first shot, but its also very likely you could drop/stun a buffalo, make a quick reposition, and he stands up again right in front of you.
I will not go on a buffalo hunt until my daughter is grown, but I plan to only use Iron sights.
This is what I'm considering for my new double, I think I'm going to go with the Aimpoint Micro H-2 with a 2MOA dotAimpoint....they have superb quality different models and very small and light...
- Lightweight – 84 g without mount and 105 g with mount
- Integral Weaver-style base allows easy attachment
- ACET technology allows 50,000 hours of operation on one battery
- Available in 2 dot sizes (2 and 4 MOA)
- Fully waterproof
- Precision adjustment for windage and elevation: top of protective caps fits into holes on adjustment screws – no other tool required
- 12 settings for use in daylight and low light conditions
I do not like fiber optic sights or see through rear sights on a DG rifle they are not rugged enough and get damaged easily...rear sight also confuses they eye too much which takes the focus away from the front sight and aiming point