45/70 Winchester load

[Indian Creek 1]

Does anybody know what the 45/70 winchester 300 gr. jhp load is? Just got a 45/70 Handi rifle and sighted in with Win. loads. The rifle shoots great with it so would like to duplicate it . Thanks   A.J.

[quickdtoo]

They list is as 1880fps, it's a trapdoor level, dunno which bullet they use for sure, it closely resembles the Speer 300gr HP, but the HP is just a bit different. Speer's load data can be found on their web site.

Tim

http://www.winchester.com/products/catalog/comparerifle.aspx?multiadd=U1BHNDU3MC0xLTErQUVBLVg0NTcwSC0xLTE=&action=3&ctype=1&atype=1

http://www.speer-bullets.com/pdf/ReloadingSupplementalDATA/4570_300.pdf

http://www.midwayusa.com/eproductpage.exe/showproduct?saleitemid=930537

[Indian Creek 1]

I was thinking they used the hornady # 4500 bullet which I just picked a hundred. Looks like the same bullet. Have you got any idea of powder and charge?  Thanks   A.J.

[quickdtoo]

I don't have any of the Hornady 300gr to make a comparison to. Dunno about powder, you'll just have to pick one and work up a load from existing trapdoor data, I'm partial to Hodgdon Extreme powders, H4198 and H4895 are two that I've used most, but I've also used H322, but most of my H&R 300gr loads are in the upper levergun levels and/or bigger bullets, 350gr at 2000fps and 300gr at 2400fps.

Reloder 7 is a real popular powder with the Levergun boys, pick one you have and work with it.

The Hornady manual shows 8 powders to 1800-1900fps for their 300gr HP... SR4759, Viht N-120, IMR4227, AA5744, Viht N-130, RL7, H322 and IMR3031.

Tim

http://www.stevespages.com/458_1_300.html

[Indian Creek 1]

Thanks Tim, seems like I heard some where that Hodgdon was making powder for Winchester now so maybe I'll try to work up some loads with H322 and see what happens from there.
                                                                             A.J.

[quickdtoo]

Here's Hodgdon's data for the 300gr Sierra...

http://www.hodgdon.com/data/rifle/4570gov.php

The Hornady book shows H322 at 40.7gr start to 54.8gr max @1900fps, 29½" barrel, Win brass, Fed 210 primers, COL of 2.550".

If you want, I wouldn't hesitate to go into the levergun data if you don't mind the recoil, the rifle will easily handle it. Hornady doesn't show H322 in that data tho.

Have fun!!

Tim

[EsoxLucius]

http://www.imrpowder.com/data/rifle/4570govt.php

Either IMR load for the 300 grain Hornady would be pretty close to the factory load.