Trying to duplicate Win Super X 45/70 load.

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Jimbo357mag

Hawkeye
Joined
Feb 22, 2007
Messages
10,137
Location
So. Florida
Any of these with a start load velocity less than 1880 fps.
What powder do you want to use? Data from Winchester and Hodgdon websites.
http://www.winchester.com/Pages/Home.aspx
http://data.hodgdon.com/cartridge_load.asp

45-70 Government 300 gr. Super-X® JHP

Product Symbol: X4570H

Suggested Use:
Cartridge: 45-70 Government
Bullet Weight: 300
Muzzle Velocity: 1880
Ballistic Co-efficient: 0.283

300 GR. SIE HP Hodgdon Varget--- .458" 2.525" 57.0 1770 16,300 CUP--- 63.0C 2020 23,800 CUP
300 GR. SIE HP IMR IMR 4064----- .458" 2.525" 57.0 1865 22,500 CUP--- 60.5C 1992 25,100 CUP
300 GR. SIE HP IMR IMR 4895----- .458" 2.525" 57.0 1826 21,700 CUP--- 61.0C 1968 23,900 CUP
300 GR. SIE HP Hodgdon H335----- .458" 2.525" 57.0 1901 17,500 CUP--- 63.5 2143 27,400 CUP
300 GR. SIE HP Hodgdon H4895---- .458" 2.525" 58.0 1805 16,500 CUP--- 62.0C 1974 21,000 CUP
300 GR. SIE HP IMR IMR 8208 XBR- .458" 2.525" 54.0 1728 18,800 CUP--- 60.0 2023 25,400 CUP
300 GR. SIE HP IMR IMR 3031------ .458" 2.525" 56.0 1884 21,100 CUP--- 59.5C 2021 22,000 CUP
300 GR. SIE HP Hodgdon Benchmark .458" 2.525" 59.5 1907 19,400 CUP--- 63.5C 2113 27,400 CUP
300 GR. SIE HP Hodgdon H322------ .458" 2.525" 54.0 1850 18,100 CUP--- 60.0 2142 28,000 CUP
300 GR. SIE HP IMR IMR 4198------ .458" 2.525" 45.0 2008 23,500 CUP--- 48.0 2138 27,800 CUP
300 GR. SIE HP Hodgdon H4198---- .458" 2.525" 45.0 1807 16,700 CUP--- 55.0 2221 27,600 CUP

...Jimbo
 

Bucks Owin

Hunter
Joined
Mar 22, 2004
Messages
3,190
Location
51st state of Jefferson
And here's the actual velocity of the 300 gr WW load. Pretty close to advertised in 22" Handi Rifle barrel. I'm kinda fond of the WW factory load myself! (Called 5th rd flier, my fault not Win's! ):
IMAGE050.jpg
 

Jayhawkhuntclub

Buckeye
Joined
Aug 28, 2007
Messages
1,096
Location
Kansas
The reason I want to do this is that my 1895ss isn't wild about 300 gr stuff, except this load. I'd like to duplicate it as exactly as possible. Anyone know just what powder is used in it and how much? Or is it not something available to the public?
 

greenmtnguy

Single-Sixer
Joined
Aug 29, 2005
Messages
433
Location
Barnstead, NH
Some of my most accurate 45/70 loads are with 300 grn HP (Hornady or Rem) with H322 powder in Starline brass. I am loading them up to around 2050 - 2100 fps though - very consistent in my 1895 (22" bbl).
 

63November

Single-Sixer
Joined
Oct 20, 2003
Messages
249
Location
Alaska (63 North, 162 West)
I would try IMR 4198 for 300 grainers. That powder seems to be somewhat more tolerant of varying volumes and pressures than some others. I have found a variety of good loads with loads as small as 32.0 grains and as high as around 50.0 with 300 HPs.

Here's 49.8:

6772Rem_300Hp.JPG


It's probably just a bit more speed than what you're looking for, but it is safe in the 1895.
 

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