Somewhat anemic .44 rimfire caliber and the magazine follower can be interfered with by the supporting hand but it was very effective in the right hands.
Such as one particular Indian during the Battle of the Little Big Horn: battlefield analysis showed that one with a Henry accounted for a large percentage of all of the cavalry casualties by crawling closer to the troopers and picking them off, one by one.
Wonder if someone has one for sale.
Whatever its faults were it was still the M14 of its day!
If you read owners comments from the day there’s never anything but praise for them.
Meanwhile, the troopers were armed with trapdoor Springfields.