Shot the 1920 today. I found it needs a taller front sight to work with the Lyman 54 bolt peep sight, so I gave up & shot the barrel sights. Managed about a 1.5" group at 50 yards with factory ammo, more or less centered, so I reckon it's usable.
The Walker did well enough. I may tinker some more with loads, ball size, and lube, but it would certainly serve for a short range backup. The cylinder seem to have less capacity than older models, but you can still fit 50gr of Swiss FFFG under the ball.
