304 The Gem of scales . I to had one from the 80's , pass a way . Miss that Scale .I bought an Ohaus (RCBS) 304 new more decades ago than I care to say. It has always served me well. I have some electronic scales now but every now and then I'll check them against the triple beam scale. I have no complaints.
You can get them fairly good yourself.Hate to go off topic , but, where would one send an Ohaus 505 to be refurbished?
I am interested in what current brands and models are popular. I inherited a Lee safety powder scale. I learned its advertised accuracy is +/- 1/20 gn. I see others like RCBS 505 is 1/10 gn. I have found the Lee scale difficult to use. Bottom line, I'm in the market for an accurate, reliable, durable beam scale. I will get a set of check weights.
The scale takes a long time to settle. My biggest frustration is it being easy to bump the set weight when removing and replacing the pan.