Quoted:
I have 1000 405 gr Magnus hard cast lead bullets. What is a good load out of a H&R Handy Rifle? Also, Will any 300 gr .45 pistol bullet work.?
A handy Rifle is pretty light . I do not love recoil , some do . For me , the recoil would be the limiting factor .
So , what are you going to be doing with the rifle ? Hunting ? What ? What Range ?
Or , like me , paper punching ?
My standard light load is 13.5 - 13.6 grains of Unique behind 405 - 300 grain bullets .
.45 handgun bullets are from .451" - .454" .
.45-70 is supposed to be .458" , but my Marlin lukes at least .460" . So , no , handgun bullets will not work well . Unless , perhaps , you can paper patch them ? If you need bullete bigger than the 400's you have , paper patch them with cigarette paper .
Do not know what pressure the Handy is rated for , but the marlin can be loaded WAY hot . Hotter than I care to shoot .
Good , hot load powders are 3031 and Reloader 7 ( IIRC ) . Also 4198 .
God bless
Wyr