Texas Phil Peeno #50923 Posted May 28, 2011 Share Posted May 28, 2011 Reloading logic question. A new-to-reloading friend asked me why does it takes more Titegroup powder to load a 200 gr .45 bullet compared to a 250 gr. load? I checked the Lee manual and sure enough the load for a 200 gr. lead bullet is 1 gr. more than the 250 gr. bullet. Didn't have a scientific or logical answer. I can understand the logic for BP because of space but for a SP... Link to comment Share on other sites More sharing options...
Bucky Buscadero, SASS #73085 Posted May 28, 2011 Share Posted May 28, 2011 Reloading logic question. A new-to-reloading friend asked me why does it takes more Titegroup powder to load a 200 gr .45 bullet compared to a 250 gr. load? I checked the Lee manual and sure enough the load for a 200 gr. lead bullet is 1 gr. more than the 250 gr. bullet. Didn't have a scientific or logical answer. I can understand the logic for BP because of space but for a SP... I am sure someone will provide a more detailed explaination but basically more pressure is created moving the heavier bullet, hence you would use more powder to create a ballistically similar load using a lighter bullet. But you better fact check me on that one. Bucky Link to comment Share on other sites More sharing options...
Texas Phil Peeno #50923 Posted May 28, 2011 Author Share Posted May 28, 2011 Bucky, That makes sense to me. It takes more umph to get a lighter bullet going going gone. Link to comment Share on other sites More sharing options...
Kid Sackett Posted May 28, 2011 Share Posted May 28, 2011 I'll second that Bucky. Kid Sackett Link to comment Share on other sites More sharing options...
Apache Hawk 60642 Posted May 29, 2011 Share Posted May 29, 2011 I am sure someone will provide a more detailed explaination but basically more pressure is created moving the heavier bullet, hence you would use more powder to create a ballistically similar load using a lighter bullet. But you better fact check me on that one. Bucky Been re-loadin' since day one, all "Holy Black"... But just looked it up .....and Bucky is rat bout dat. I never loaded dat heathen smokeless powder and mostly will not !!!! Link to comment Share on other sites More sharing options...
Charlie Harley, #14153 Posted May 29, 2011 Share Posted May 29, 2011 Yes, how Bucky described is correct for many smokeless powders. Link to comment Share on other sites More sharing options...
Buckshot Frank Posted May 29, 2011 Share Posted May 29, 2011 Heavier bullet is longer, but you will load it to the same OAL as a lighter (shorter) bullet. That means there will be less case volume with the heavier bullet. Less volume = higher pressure; therefore, less powder is needed to equal the same pressure. Link to comment Share on other sites More sharing options...
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