I stumbled on a Remington Egyptian rolling block rifle and can't seem to find any published load data for the .43 Egyptian rounds. The few threads I have found drift into discussions about the .43 Spanish and aren't of much use.
I purchased a few Buffalo Arms formed cases (from Starline 50/90), have some .448 390 grain or so cast boolits, FFg black powder and some primers. Also have Unique, IMR4198 and a few other powders. I'm going to load a few with 70 grains FFg which comes up to the case neck in the brass. Would like to load a few lighter BP loads but I think I'll need some sort of filler because of the bottleneck cartridge. Correct??
Also would like to load some smokeless and am thinking I could use Trapdoor 45/70 load data??
Any advise will be appreciated. Thanks.