Strictly from a machinist's viewpoint, I would anticipate no problem in threading for screw-in chokes. No more so than opening chokes with a reamer. As already well pointed out it is necessary there be ample wall thickness for the job. Those thine wall at the muzzles apply equally to a lot of hammerless Damascus barrels, same as the Hammer guns.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra