There used to be one in James street, long gone now though, probably a lap dancing bar now.
Nearest one is centrevine in formby (should take about 20-30 seconds to see everything although they are quite good for reloading stuff, next would be wild Bills in rufford, also known as seftons garage, again, not a great shop but good for reloading.
Centrevine is probably more suited to vintage guns, that sort of thing. Next is probably Bamfords in Eccleston but you'd be travelling for 45mins to get there.
If you fancy rimfire shooting some wabbits and I'm free (during day is best) I could take you out, you would need an open ticket.
Tony