Smokeless Powder Density Chart
- Thread starter Andy
- Start date
maple leaf
CGN frequent flyer
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- SW Ontario
The Alliant Powder Roloading guide is here: http://www.alliantpowder.com/resources/alliant/2015_Alliant_Powder.pdf
The Lee Precision Reloading chart is here, though it down't have Reloader 26 on it. It does have Reloader 25, which is Aliant's other magnum powder: http://leeprecision.com/cgi-data/instruct/AP1704.pdf
If those two documents don't help, call the support hotline in the Alliant reloading guide, tech support can get you an answer.
Hope that helps. cheers
The Lee Precision Reloading chart is here, though it down't have Reloader 26 on it. It does have Reloader 25, which is Aliant's other magnum powder: http://leeprecision.com/cgi-data/instruct/AP1704.pdf
If those two documents don't help, call the support hotline in the Alliant reloading guide, tech support can get you an answer.
Hope that helps. cheers
sometimes it can be found in the msds
Well I never did find the chart - there are many powder density charts, none of which are "recent" in the sense that they all leave out several powders that have come to market in the past three and sometimes even 10 years. Now in fairness, maybe what I seek is there, but I couldn't find it. It still goes to show that there's always something to contribute and I will try.
What I want is a "complete" list of powders still sold that shows their density by three measures:
1. cc/gr;
2. gr/cc; and
3. g/cc.
#1 and #2 are in common usage and are just the inverse of each other, and #3 is rarely shown.
We all know that 1 cc of water weighs 1 gram and it turns out that the most dense powders (e.g. H335) have densities just a tiny bit over 1.0. For that reasons I like #3, because it makes it easy to compare powder densities, since it ranks them on a scale that ascends, and goes to (i.e. is based on) 1.000. On that scale, Trail Boss is 0.298 and H335 is 1.005, so it's easy to see that You can fit more than three times the H335 into a cartridge than Trail Boss. More importantly, since we establish case capacity by the amount of water a cartridge can hold, it's easy to estimate how much will fit. If the cartridge in question holds 60.0 gr of water to the bottom of the neck, then you should be able to fit about 18.0 grs of Trail Boss, or 60.0 grs of H335 in it.
Incidentally, I found the info on Reloder 26 I was seeking, in the latest edition of "Handloader" magazine. Its density is 0.980 g/cc, or 0.661 cc/gr, or 15.123 gr/cc. Its Powder Burn Rate is supposed to be near Reloder 25 which has a density of 0.917. This means that I can physically fit 6.8% more Reloder 26 than Reloder 25 into a case, so if it's full with 54.0 grs of Reloder 25, it will be full with approximately 57.5 grs of Reloder 26.
What I want is a "complete" list of powders still sold that shows their density by three measures:
1. cc/gr;
2. gr/cc; and
3. g/cc.
#1 and #2 are in common usage and are just the inverse of each other, and #3 is rarely shown.
We all know that 1 cc of water weighs 1 gram and it turns out that the most dense powders (e.g. H335) have densities just a tiny bit over 1.0. For that reasons I like #3, because it makes it easy to compare powder densities, since it ranks them on a scale that ascends, and goes to (i.e. is based on) 1.000. On that scale, Trail Boss is 0.298 and H335 is 1.005, so it's easy to see that You can fit more than three times the H335 into a cartridge than Trail Boss. More importantly, since we establish case capacity by the amount of water a cartridge can hold, it's easy to estimate how much will fit. If the cartridge in question holds 60.0 gr of water to the bottom of the neck, then you should be able to fit about 18.0 grs of Trail Boss, or 60.0 grs of H335 in it.
Incidentally, I found the info on Reloder 26 I was seeking, in the latest edition of "Handloader" magazine. Its density is 0.980 g/cc, or 0.661 cc/gr, or 15.123 gr/cc. Its Powder Burn Rate is supposed to be near Reloder 25 which has a density of 0.917. This means that I can physically fit 6.8% more Reloder 26 than Reloder 25 into a case, so if it's full with 54.0 grs of Reloder 25, it will be full with approximately 57.5 grs of Reloder 26.
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Andy, I agree with your post except for the section I have highlighted. I believe it should read: "I can put 3x the amount of H335 in a cartridge than I can Trailboss." Trailboss being so bulky, it is physically impossible to get enough of it in many cases to get into trouble.
Regards, Dave.Check the Lee information for use with their " Powder Measure Kit ", which has Reloader 25.
Or try at ( http://home.comcast.net/~j_colt123/LeeAutoDiskCalc.htm )
Or try at ( http://home.comcast.net/~j_colt123/LeeAutoDiskCalc.htm )
