>> Do I take it you're crown topping proper sized champagne bottles, if so
>> what size crown top do you use ? I wondered about this years ago but
....
> ... The North American ones fit beer bottles; I think they are
> 26 mm, I think the European is 29 mm. My capper is made for the 26 mm
> and is at least 50 years old.

One thing, Champagne bottles have a thicker neck than a beer bottle,
so most "wing" bottle cappers won't work - they're fixed at the beer
bottle size. I've seen one brand with a swing-out adjustment for the
neck size that will work. Bench cappers will always work because they
don't touch the neck at all.

So if you're going to buy a capper for this, be sure it will work on a
Champagne bottle first... (like he said above, the caps are the same
size on the "North American" bottles.