The 96/11 and the 1911 both shoot GP 11 with phenomenal accuracy and consistency, the long sight radius is a help too which is one reason I prefer them to the K31. I have only shot cast in the 1889 and it shoots that very well too. I prefer to use cast in all three rifles as I can get as good as or better accuracy as GP11 out of them at a lot less cost plus the enjoyment of the casting and loading development process and the casting and handloading to feed them. I'm one of those people that shoot to handload rather than handload to shoot. The 1889 has a good throat for paper patching too as per the original GP90 round.
Out of all of them my favourite has to be the 1889, its throat was made for cast boolits so has high accuracy potential. Its an obsolete calibre rifle too so no slot needed if you don't want to shoot it.
No idea what the fuses are for, need some military type to answer that one. Its just an ammunition box to me of which I have dozens, I am sure that the buggers reproduce in the darkness of the night. I always seem to tripping over ones I didn't know I had (forgot I had) full of stuff I didn't know I had (forgot I had). :G

:shock:
