Yes, I read that too. They had access to firearms and pistols could be very handy close up. The thing is long guns were less efficient than bows in the hands of accomplished horse archers.
A world away the Comanche took up the gun and then reverted to the bow. It took the Colt revolver to stop their gallop. Post Colt the Comanche wanted fire arms again but it took a repeater for that to happen.
The Bashkirs were still using bows in Napoleon’s time albeit without good effect. I think they wouldn’t get close enough and maybe they thought it wasn’t really their fight. Anyhow, I’m not convinced that the all of the Tartars abandoned the bow.
I liked the figures too and you know how that is.