45-70 500 Grain lead bullet powder charge?

yomomma said:
What rifle?
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Yomomma is completely correct. With .45-70 coming out in 1873 , there has been many rifles made for it.
Many of early ones have weak actions like the Springfield Trapdoor & can only handle a light load .
Whereas some actions like the Browning 1885 ( copy of Win. High Wall ) can handle higher loads .
Even the original Win. 1886 is divided into two strengths .
1 st. - Black Powder , case hardened receiver , with regular steel barrel , ser. # up to 122,000 approx. ( 1902) = loads up to 28,000. PSI.
2 nd. - Smokeless Powder , blued receiver , with nickel steel barrel , ser. # after BP till end in 1932 = loads up to 40,000. PSI .

NOTE : I have a 1962 issue of Shooting Times mag. with an article from Ken Waters entitled ,,, " Smokeless Loads for B.P. Rifles" .
In it he has 6 Groups of rifles all of different action strengths . Each group has there own reloading data , according to their
strengths .

Example : Group 4 lists the .45-70 with a 500 gr. cast bullet using 22 gr. of 2400 . Always start low & work up slowly looking 4 signs
of high pressure .
 
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