I am only 12 years old and my cousin gave me a benelli pump action about 2 weeks ago and i went to test it and he had given me some ammo,(not knowing what gram it was!!) so i fired it and it felt like a 30g load then i ejected it and to my surprise i read the cartiridge and it said AAA 50g 31/2" magnum and i could not believe that i had fired it and i wasnt even bruised and im tiny. if u thinks this is a wind up ill put a vid on this message soon of me fireing one. !!!!!!!!!!!!!!!