I think it's a .38 in the picture ( I 'may' have ever so slightly photoshopped the image) so yes, it will, as you say, do a lot of damage and you will have a bit of a headache the next day :~)
A French, gate loading, single shot 'revolver' - Does anyone remember seeing one ?
Despite 'Googling' this, I cannot find any reference to these pistols ?
Can anyone reply to this with a link to an image or description please ?
