*Edited - updated with range report page 2*
Hi guys, I posted in the sticky originally but it doesn't look like it gets read very often. So I'll start a new thread.
I have a S&W DA coming soon and I want to develop a smokeless load for it. I shoot a bit of BP - maybe 1-2lbs a year, in my .45-70 and coach gun. I'm aware of pros and cons which is why I'd like a smokeless load. While researching this I came across many forum users who recommend only BP or Pyrodex in the antique Smiths, but I'm intrigued by some talk on here of using smokeless powders that are slower than BP, and the idea of getting BP ballistics with less pressure (and clean-up) appeals to me.
I have loaded some cut down .44 magnum cases with 3F goex and will try them out first. On the advice of a fellow CGNer (Thanks for the PM and Webley data Jethunter) I tried seating the bullets out to the first grease groove which allows space for a slightly compressed 20 grains of 3F. This would presumably still be below spec but I really don't see 23 grains happening without a balloon head case. I compressed the loads I assembled about 2-3mm. The bullet I'm using is the Lee 429-200-r3 which actually comes in at 215 grains for me out of 50/50 pure lead/wheel weights.
The next step as I see it would be to shoot these over a chrono and then work up a load with 2400, 5744 or 4759 (which are the powders I've seen mentioned) that matched the black powder ballistics, and I would have an equivalent load of lower pressure.
-The question is what charges to start with, and which is a better powder for the .44? I assume the slower powder will produce less pressure and wear so I'm inclined to go with 5744.
-I also have a bunch IMR 4227 which is right after Alliant 5744 in the Hornady 8th edition burn rate chart. Could I use that? Again, what would an appropriate starting load be?
Thanks guys,
Ben
Hi guys, I posted in the sticky originally but it doesn't look like it gets read very often. So I'll start a new thread.
I have a S&W DA coming soon and I want to develop a smokeless load for it. I shoot a bit of BP - maybe 1-2lbs a year, in my .45-70 and coach gun. I'm aware of pros and cons which is why I'd like a smokeless load. While researching this I came across many forum users who recommend only BP or Pyrodex in the antique Smiths, but I'm intrigued by some talk on here of using smokeless powders that are slower than BP, and the idea of getting BP ballistics with less pressure (and clean-up) appeals to me.
I have loaded some cut down .44 magnum cases with 3F goex and will try them out first. On the advice of a fellow CGNer (Thanks for the PM and Webley data Jethunter) I tried seating the bullets out to the first grease groove which allows space for a slightly compressed 20 grains of 3F. This would presumably still be below spec but I really don't see 23 grains happening without a balloon head case. I compressed the loads I assembled about 2-3mm. The bullet I'm using is the Lee 429-200-r3 which actually comes in at 215 grains for me out of 50/50 pure lead/wheel weights.
The next step as I see it would be to shoot these over a chrono and then work up a load with 2400, 5744 or 4759 (which are the powders I've seen mentioned) that matched the black powder ballistics, and I would have an equivalent load of lower pressure.
-The question is what charges to start with, and which is a better powder for the .44? I assume the slower powder will produce less pressure and wear so I'm inclined to go with 5744.
-I also have a bunch IMR 4227 which is right after Alliant 5744 in the Hornady 8th edition burn rate chart. Could I use that? Again, what would an appropriate starting load be?
Thanks guys,
Ben
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