The FN BRG-15 was a heavy machine gun designed by Fabrique Nationale of Belgium as a potential replacement for the .50 caliber Browning M2 heavy machine gun. Several 15mm cartridge variants were tried as the project evolved, with the 15.5x106mm round being the last in the series. The project was ultimately cancelled in the early 1990s.
|15 x 115mm||AP||brass||Belgium|
|15.5 x 106mm||APDS||brass||Belgium|
|15.5 x 106mm||Dummy||aluminum||Belgium|
|15 x 110mm||Dummy||brass||Belgium||110 S FNB|
|15.5 x 106mm||New Unprimed Empty||brass||Belgium|
|15 x 115mm||Ball||brass||Belgium|