Buck is a glutton for punishment. He already has examples of two of my wildcat creations, the .500 SRE and the .577 VSRE, shown here with another wildcat, the .450 C&W. The .577 VSRE (for Very Short Range Express) duplicates the ballistics of the .577 NE in a 2.5" case designed for a bolt rifle: a 750 grain bullet at 2050 fps. Next to it is the .500 SRE, which propels a 570 grain .510" bullet at 2150 fps, duplicating the performance of the .500 NE. The .450, on the left, is simply a rimmed version of the .450 Watts for use in a double rifle or single shot. I have a Krieghoff O/U double rifle in that caliber, which duplicates the performance of the .450 NE at pressure levels commensurate with a double rifle. I can attest that the .577 VSRE is a handful to shoot.