Remington 57* and 69* primers?

Ok the Rem 57 was the old small primer then they had a 69 that was larger most was used in the 20 28 and 410 till about 12 years ago then they went to the 209 size . A 209 can be forced in a 69 pocket[not a good idea] there is NO way you will get a 209 in a 57 pocket. All the old rem/peters paper were 57 the first plactic Power Piston were also The 209 is .242 the 69 is about .219 the 57 around .210?