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Discussion Starter #1
I have loaded some 200 grain Hornadys for my Winchester Model 71 in .348 Cal with SR4759and got poor groups.
I only know of one listed powder charge, 30 grains.
Does anyone have info that gives a minimum and maximum powder charge for the 348 using this powder.
Bob Nisbet
 

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The data I have is from the 47th Edition of the Lyman Reloading Handbook and your powder is not listed. Over at http://data.hodgdon.com/cartridge_load.asp, there is more data, but again your powder is not listed.

Have you thought about changing powders?

Jerry
 

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25 grains should put you around 2,000 fps, I wouldn't go much lower than that.
 

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I've looked through a half dozen or so manuals, Handloaders Digests, Cartridges of the World and none have a listing for this fast burning powder. Guess it's not supposed to be used in the large capacity .348 Win case.
 

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SR4759 is a fast burning powder for reduced recoil/velocity loadings in almost any case. DuPont/IMR used to list it for all rifle cartridges in their manual, including the .338, .375 and .458 Magnums. But without tested data I'd be hesitant using it in an old 19th century rifle design....


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Discussion Starter #7
Thanks All.
My load of 30 grains behind the Hornady 200 grain bullet is a valid load.
I received a big spread sheet listing lots of 348 load and powder combinations, but the SR4759 had only the one.
Since the 30 grain load gave velocity around 1979 fps, and poor accuracy,
I was looking into whether this powder charge could be bumped up to get the velocity up to between 2200 and 2400 fps.
I know that the 200 Hornady can be accurate from 2000 fps and up.
Bob Nisbet
 
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