The Pardners and Toppers are fine shotguns. However
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They do have a major problem, in that they are usually in need of a very good CLEANING right out of the box. Lots of residue from machining and all that.
I ALWAYS remove the barrel and stocks and spray the inside of the receiver down with Brake Parts Cleaner, then blow it out with compressed air. Same procedure for the barrel lug. After the receiver is all dry, then I spray just a bit of DRY LUBE on the mechanism and re-assemble everthing. I have never had one pop open when I clean it up like this. I also do a good cleaning on the inside of the barrel and if it looks nice and shiny then I'm done.
This is just my procedure. I haven't burnished the bore on one, yet, but that is supposed to help get better patterns. I have had to de-burr the inside of the muzzle where the bead hole was D&T'd and left a little burr on the edge of the hole. This was a technical procedure that required my pocket knife and a gentle touch.
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This the way I do it. Others have different procedures, doesn't really matter as long as you get the receiver clean and use a dri-lube on it.
cookiemann