I held:
Scoring: IMP
How dare they! I double.
It goes
3NT X pass 4♥
5♦ X
Down 1.
I am about to show the hands but what's your opinion of my double? What should I have done? What should I do if rho passes 4♥?
More generally, how does one bid when rho opens a gambling 3NT? Should double just mean something like "I don't think they are m making this" with further information to appear later when/if they run?
OK, here are the hands. Making 4♥ is an interesting challenge. Of course it can be set double dummy but perhaps the defense begins with a top D, a heart to the ace and a heart back. As the cards lie, you can go up with the Q of hearts and draw the last trump after which you can probably manage. But that will not be a great line if hearts are 4-1. If you let the heart run to the Jack I think that you need to play to the ten of spades first round, leaving the trump out, while you are in the dummy. Two spades, five hearts and two clubs does not add to ten tricks.
Scoring: IMP
As you can see, 3NT makes, or at least can be made. Probably partner makes 4♥ but she has a good hand with good and long hearts and it's still close. So I am not so happy with my double.
Suggestions, both for this hand and for dealing with the 3NT more generally, will be appreciated.

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