Looking for Ballistic/loading info and substitute powder for original powder if/when we find the cartridge. It might not be one of the original Peterlongo series cartridges, like the 7x66 Vom Hofe SE was not developed by Vom Hofe, but by the successor owner of the company. BTW, check 7x66 Vom Hofe SE cases for use as donor case for 9.5 Peterlongo.
Mike
Hello Mike. Finding a substitute powder for the original 1912 powder is absolutely of no interest, especially for a bolt gun. Its not at all necessary, unlike trying to find a duplicate original powder/load for regulating a double rifle. In addition, there is plenty modern loading data available for the 376 Steyr cartridge, which is nearly identical to this 9.5 Peterlongo cartridge. The 376 Steyr is has slightly less case capacity (only 4 grains less) so using that data is still somewhat conservative. Also, the 7x66 Von Hofe case you mention has a head diameter that is far too large to be considered as a donor case. Since I have 30 pieces of custom brass that I made from 375 H&H cases, I'm not needing any more donor brass. In fact, the 356 Steyr ammo dimensions are so close, I may actually try testing some original Hornady 356 Steyr factory ammo in the rifle by rebating the head and adjusting the shoulder.
