45-70 bullet barn cast loads

[silhop]

g'day

Got some 420gr gas checks on the way from the bullet barn. Going to be shooting them outta my marlin 1895SBL. Anyone got any load recipes for these casts?? Recoil isn't an issue so I'm all for a hotter load.
cheers

 

[458lott]

i shoot 40 gr. RX7 with ex. results in my sbl 450 gr. cast gas checked. i also shoot 40gr. H322 with a 540 gr. hard hitter.

 

[MTM]

I shoot Bens 420s. 42 gr of IMR 4198 goes just under 1700 in my GG. 49 grs. REL 7 ouch, goes just under 1900 in the GG. I've got a ton of 4198 so that's what I shoot currently. Pretty sure it'll do some damage even at the slower speed.