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Normal Topic DuPont BP & Smokeless PowderLoading Data (Read 1731 times)
John Boy
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DuPont BP & Smokeless PowderLoading Data
Feb 7th, 2019 at 4:03pm
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Scroll down for reloading data for all the old calibers 
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.22-5-40
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Re: DuPont BP & Smokeless PowderLoading Data
Reply #1 - Feb 7th, 2019 at 5:36pm
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Thanks John Boy!  Interesting stuff.
  
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beltfed
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Re: DuPont BP & Smokeless PowderLoading Data
Reply #2 - Feb 7th, 2019 at 5:39pm
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Nice Historical contribution of this old DuPont brocure.
I still have a pound or so of their BP in the oval cans.
also, still working on a 20# keg of genuine  DuPont IMR 4227 and a 12 # keg of DuPont 4759 from a time years ago when I bought all of the remaining big kegs of DuPont powders from a nearby Remington/DuPont distributor
beltfed/arnie
  
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Old-Win
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Re: DuPont BP & Smokeless PowderLoading Data
Reply #3 - Feb 9th, 2019 at 8:18am
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I'm surprised by some of the case sizes and the recommendation of powder to be used in that case. Many of them are not typical of what we do with today's modern powders. I wonder if it applies the same today? We normally load differently then the recommended powder charges by DuPont. For example some of the cases say to use one F while today, most of us have been using one and a half or two F
  
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Ranch13
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Re: DuPont BP & Smokeless PowderLoading Data
Reply #4 - Feb 9th, 2019 at 4:21pm
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Pretty sure that's because what the called 1f in the sporting powders of the day, is pretty close to what we're calling 1 1/2 and 2f, in some brands of powder, and 2f in some of the other brands.
  
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