+ 1 on the above . The higher the pressure the shorter it'll last . Low pressure jeez forever I have some 45acp & 38 special cases that have only seen light target loads from the 1960's . 30/06 cases that I only shoot cast in a 1903 last forever , though you have to anneal necks or they'll work harden & split . Some calibers & guns eat brass & aint much you can do if you want to shoot it . Once fired buys for low pressure paper punching if you must , but expect to have to carefully inspect every case . Buy new or if you're cheap like me beg the service team guys for their brass . Access to a LE or Military range is also a good source .