[danyboy]

I would like to use SR4759 powder along with a paper patched 347gr. bullet in my Marlin 1894 (made in 1903, according to oldguns.net)rechambered from 44-40 to 45 colt by the previous owner ( an old gunsmith personnal hunting rifle).
I can't find much info in my Speer #10 and#11, Hogdon, Lyman#48 , Lyman Hand Cast books.
Does anyone have any data for a 350gr cast bullet along with SR4759 powder for 45 Long Colt ?
Heard Speer#9 manual has some, could that be ?
Thank You

 

[35remington]

Why such a heavy bullet?

May have feeding functionality issues. Also with pressures. How are you seating this?

Why not a standard weight bullet and normal loading procedure?

 

[gordie]

speer # 9 has SR4759 listed w/ bullet weights of
200, 225 jacketed hollow pt., & 250swc in .45 LC to
be used in blk-hawk & tc cont.
PM me for info.

 

[35remington]

I'd suggest leaving heavy loads out of the loading procedures suitable for an old rifle.

Don't shoot any heavy loads until you know for sure how the rifle responds to lighter ones.

Extra heavy bullets, if they must be seated deeply to function through the action, raise pressures a lot.

Be careful.