.44-77 bullets for a 19-twist barrel?

[beltfed]

I like your approach with the patch to bore adjustable mold to start with for bullet length study.

Here I go off topic.
Just like I am doing with my new(to me) 38-50RH.
Making do with whatever mold in my inventory until I have a DDEPP made.
So far, I have an interesting load that tested pretty good in initial load:
I paper patched a 315 grain NEI 300.358 gas check bullet. that got it up to
a good bore ride diameter. Filled the case to top with Swiss 3f/topped with 0.060 LDPE wad
and shot breechseating the bullet. 2 1/2" at 200yds. With irons and my limited eye accuity.
I continue to follow your journey with the 44-77 with interest.
Arnie