Just used this gun on redfeather and val des bois, and I enjoy the iron sights, they are clear and very relaxed to aim with, atleast for me, I am used to the old ww2 shootergames iron sights.
This gun ofcourse prefers short range encounters, but shot a couple of animals well over 100meters, and dropped them instantly, the power behind this gun is insane.
it takes more time than with a scope ofcourse but its doable. but like radamus pointed out, you dont aim with the point but just slightly below it.
I just started rewatching Westworld(I know its not the same gun, but still looks allot like it), and when I saw this gun it was an instant buy, and I am possitive I am not going to regret it.
now if we could rechamber like hector can, we can only dream haha.
thats my 2 cents, but than again, I am a newby to the game, and have no experience at all with guns irl.