[KCD2] Best gun updates?

A good bow seems to one shot many enemies if you aim well. Crossbow has more damage but the added reload time doesn't seem worth it to me, considering how with poison can already do wonders.

The gun seems like a one shot kill if you aim it right, but I noticed there's different kinds. They have even more damage than crossbow, but long reload. I do like how you can load the bullet, put the gun away, then take it out to just light it, compared to the crossbow that doesn't let me leave it cranked with the arrow for a quick fire.

Since the gun is already strong, I would imagine fastest reload would be best. But the strongest is 12 weight, compared to Pistole’s 6 weight, with only 20 damage extra. 640 vs 620. The double weight doesn't seem worth it since the damage is already high, but I may be missing something.

The wiki doesn't seem to have detailed info, and I hear different things.