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originally posted by: Vroomfondel
Center fire as opposed to rim fire isn't too big a deal.
originally posted by: Biigs
If you were to take a .22 pellet gun in the UK and put a hugely powerful spring upgrade in it that put it over the power threshold you would also need a firearms certificate.
We are kind of weird like that (if you put a .22 spring air gun coil in a .177 pellet gun it would be as powerful as a basic firearm too despite the small caliber)
originally posted by: pez1975
looks alot like a smith and wesson pin fire 54 cal for 1840's to be a little more specific