Yes, you can learn from experience and adapt to aiming with Paciencia, but the scope mod for the hunting rifle just seems so much more simple.
Nevertheless, I think you'd struggle to find someone who'd prefer Paciencia to the normal hunting rifle simply because hunting rifles suffer from inaccurate ironsights. And admittedly, yes, it will out-DD a normal hunting rifle with a sneak attack crit, as Paciencia has the same crit damage of an AMR.
Post a list of weapons you consider completely impractical and non-viable options regardless of character type.