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Posted: 8/20/2013 1:51:14 PM EDT
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Hey all,
So modern reloading chart says for IMR 4895 the start grains are 23.0 and never exceed grains are 26.2c. Under "auto disk" it says "DBLD", which means "double disk." I have a lyman powder measure. Can i just disregard this and measure out 23.0 to 26.2 grains? The book is incredibly cursory and does not explain this. |
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It is very smart to check the load data from several published manuals, including online data from the powder company, before loading.
The bullet type and weight can change the min /max amounts of powder used. Once you know what powder weight you need, make your measure throw what is needed. It may just throw "close enough" and need a trickled amount added to get you there . |
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Quoted: Hey all, So modern reloading chart says for IMR 4895 the start grains are 23.0 and never exceed grains are 26.2c. Under "auto disk" it says "DBLD", which means "double disk." I have a lyman powder measure. Can i just disregard this and measure out 23.0 to 26.2 grains? The book is incredibly cursory and does not explain this. Welcome to the Reloading Forum.  Guessing you are loading for 223. The Lee 2 reloading manual is giving you several options for measuring powder. You can use the number of grains with any brand powder measure and scale. The other info is for Lee's powder measure's. For more loading data check the powder makers websites. The links are up in Links at the top of the page. |
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Just to explain what everyone is saying about the auto disk, just so you understand a little.
The lee auto disk powder measure has four different disks with different diameter holes in each. There is a chart that comes with the measure that has a formula to calculate to determine exactly which holes need to be used to reach your desired grains of powder. For most larger cased calibers, two disks are required to meet that number. Thats what the "double disk" means. Heres what the disks look like to give ya an idea. 
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