No hijack intended but, if 45-70 Trapdoor loads work for .43 Mauser (11.15x60R) would this apply for .43 Spanish (11.15x58R), .43 Egyptian (11.43x50R) and M77 Werndl (11.15x58)?
Yes, but only IF:
a. their action strength is as strong as, or stronger than the Springfield Trapdoor (28K CUP or less);
b. their case capacities are the same or greater than the 45-70 (79 grs water); and
c. their bore sizes are the same or larger than 0.458"
a. and b. hold true for the M71/84 Mauser (stronger) and the 11.15X60R (larger at approximately 90 grs), but its bore size is slightly smaller at 0.446".


















































