Wet again this morning so I loaded 5 rounds with the heavier 130 grain BP charge
Left to right
222 Rimmed
7x57 Rimmed
5 rounds 577-500 #2 Express
500 3" BPE
50-70 US Govt
The 500 3" BPE is the go to 500 BPE in the day and is sufficient for any DG that could bite and claw you.
But they ran into pressure problems in the tropics.
Hence the 577-500 #2 Express had 40% more capacity and used very coarse slow powder to get velocities around 1800 FPS and low pressure at high atmospheric temperatures and humidity.
The 500 BPEs were not for DG that could stomp on you and grind you into dust.
They were not as most people currently think a Big Five DG caliber.
They look puny against a 10, 8 or 4 bore BP rifle which was what you would have faced off the big angry guys prior to Nitro coming on the scene
Bookmarks