Found an old bottle with some type of metal cap clamped and rusted on

[creekwader]

I found an old bottle with some type of metal cap clamped and rusted on. Will anything help in getting that off without prying? the bottle is very thin. Help

 

[Bottle tumbler]

I take mine most of the time outside and soak it in a strong muratic and water mixture, some times just the acid, but outside!!!!
or rust remover clr might work, soak it for a few days.

 

[WhiteLighting]

is it a wire clamp?......if so use a small pair of pliers and be carful or take BTumblers advice!...