I am ignorant of most shotgun terms, but will note that the CZ Canvasback is a 'boxlock' design, with 28" barrels and a single, selectable trigger and extractors but no ejectors. It came with five choke tubes.
Click image to see it full-size.
![Image](http://i239.photobucket.com/albums/ff206/arwatch/Firearms/th_IMG_2467.jpg)
Folks here at the GunTalk forum did me a great service by explaining the difference between double and single-trigger guns. - My fingers are fat like sausages, so I have concentrated on looking at single-trigger guns.
![Image](http://i239.photobucket.com/albums/ff206/arwatch/Firearms/th_IMG_2470.jpg)
According to the literature, the barrels are chrome lined. The action and barrels are finished with 'black chrome', which I am not familiar with, but it looks OK and hopefully will be durable.
Chrome or no chrome, I keep it wiped down with Mobil One synthetic motor oil.
I am happy to report that the stock fits me well. The gun comes up and tracks fast, and I'm connecting with the birds very well, even when I don't have much time.
For decades, I thought that I was a lousy wing-shooter - but it turned out that my trusty old shotgun that I had had since I was fifteen didn't fit me very well. One day I tried out something different that had been thrown in as boot on a trade - and I was amazed to discover that I could shoot birds, after all!
One mystery concerning O/U shotguns remains... The proper way to open the gun.
What I have been doing is to move my fingers behind the trigger bow, and point the gun slightly downward. - Then I reach across with my off hand to actuate the lever, letting the weight of the barrels cause them to flop down, with my off hand ending up over the extracted shells.
Should I support the barrels somehow - or just let them drop like that? I am uncertain about how roughly or delicately the action should be worked.
Any kind of tips for newbees would be appreciated.