These readings were taken a few years ago and it could be possible they have changed by now.

Primers

Federal 209A .239-.242 dia.

CCI 209 .240-.242

Rem. 209P .241-.242

Cheddite 209 .240-.243 stepped, most consistent in size

Win. 209 .240-243 stepped

Fiocchi 616 .243-.244 *

Rio type 209/G600 .244 *

Nobelsport type 209/686 .243-.244*

* measurements taken by someone else


David