When I called and talked to Henry they addressed the jamming issues by polishing the feed ramp and a bunch of attention was spent on the magazines.
I have a Henry AR7 and it has ABSOLUTELY ZERO RELIABILITY ISSUES when you use CCI Blazer until you shoot 350 rounds. The action will start to get 'gritty' and then the trigger won't reset after firing. The issues come up when you use the garbage ammo at Wal-Mart, the gun jams after a few rounds. The triggers are stiff, the barrel nut loosens every 100 rounds (takes 1 second to tighten), and the teflon coating scratches easily. The front sight floats in the dovetail and moves left/right easily, so you have to glue it in place. My AR7 had the receiver cross bolt come loose from the roll pin that connects the bottom handle, so I had to call them and they sent me 2 replacement parts free of charge.
In sum, the gun is what it is. A lightweight rifle that feels like a toy but breaks down to 16.5 inches and weighs 3.5lbs. I have a 10/22TD and have shot the papoose and I think those rifles fit other niches (not backpacking) so I will keep using my AR7. It's actually quite accurate somehow, the gun prints sub 1-inch groups at 75 yards, which is better than both of my 10/22's, so there's a bonus.
I shot 7 grouse and uncountable squirrels with my AR7 over the last 2-3 years, a couple house sparrows as well. It fits perfectly in my Maxpedition pack and I would just leave that pack in the truck with the gun and 250 rounds of ammo. Right now I'm going to get a custom 16 inch 870 barrel that will go with my butler creek folder so that I can carry an 870 as well in the bag. That will be the ultimate combo alongside the AR7.
EDIT: Sorry if I didn't answer the OP's actual question, I never owned a charter, but my buddy did and he said it was fine when you clipped a couple coils off the rear spring and polished the feed ramp.
