The 1980's CCI 109's and CCI 209's use the same data, and are sealed can be used with ball powders. The CCI 109 primers were plated to resist corrosion for hunting loads. The 209 primers were intended for target loads and were not plated.
The current CCI 209's are not the same primer as the originals. They are Fed 209's in disguise.
CCI 157's are sealed and the same smaller diameter as the unsealed Remington 57 primers.
CCI 157's can be used with ball powders.
Some folks like to use CCI 157's for in-inline muzzle loaders as the are easier to remove after firing.
Michael
