Just purchased an older Holland and Holland double rifle chambered in 577/500 nitro express.
In all true honesty, what game would be, if any, huntable with this caliber?
Where is a good source for 500 ammo here in the states?
First off there is abig difference between a 500 Nitro, and 577/500 express. The 500 NE is a streight 3". or 3 1/4" cased full Nitro round that pushes a 570 gr bullet is the 2150 fps range, producing 5850 fpe at muzzle.
A 577/5oo nitro express is about the same as the old 50-110 Winchester black powder loads , and was used mostly for thin skinned game, and was more popular in India than in Africa. The round is not generally considered well suited to dangerous game shooting, as it only pushes a 465 gr bullet at around 1500 fps, developeing only 2300 fpe at muzzle. It is basiclly a black powder cartridge , that was converted to a light smokeless loads, but would be a fun double to use for Moose, Blanck bear, and deer in North america. Would make a fine wild Boar rifle, useing the right bullets, and carefull placement, at short range!