I think you will find that all 680 series guns have chromed bores.

Steel shot was not the reason, as the design predates steel shot and early Mobil-Choke guns were not suitable for steel shot - that fact I know for sure.

It's easy to find out. Just use some cold blue in the choke area. Cold blue will not color chrome.


"The price of good shotgunnery is constant practice" - Fred Kimble