here in the US, go to JES Reboring. he has does a 35/40 krag. in NZ, i don't know.
i have a 35/30 (JES Reboring) in win m94 with a williams fp sight, that i just luv. 200gr rcbs fn gc with 20.0gr of 2400/dacron (1726fps) is my deer/black bear load.
i don't if it is a wildcat, but i have a 20 vartarg(221 rem fireball) in a tc encore with a 23" MGM barrel. a 32gr hornady vmax with 18.7gr of rel7 and it is a one hole group. .1 - .2" at 100 yards(5 shots/benched). nowadays its a 34gr(midsouth/midway) hp with 18.5gr of rel7 and while its not a 1 holer, it goes .3 -.5" at 100 yards(5 shots/benched). my 20vt is around a 300-350 yards rifle. in the areas i hunt, 200 yards is the maximum. its my groundhog, fox, 'yote, soda can, rock rifle.
the last picture i was fireforming my loads and it is a 200 yard target.