So I have been reloading for a while. I am trying to understand how several things inter-relate.
Burn rate
charge weight
barrel length
How does one understand which powder and which charge weight is optimal for a cartridge and or barrel length. In general one would expect to simply be able to choose the powder with the highest velocity in the manual, however most of the manuals I have don't list barrel lengths, or they are longer or shorter barrels than what I have.
For example. In my case I am loading for 38spl currently.
158g Hi-Tek coted SWC
Powders I have are HP-38 and Power Pistol
2 pistols
357 mag chamber 6in barrel
38spl +P chamber 1.8in barrel
My plan was to shoot a start and a max charge of each (already worked up from start) in each barrel length. My hope was to understand from this how efficient each powder in each barrel length by velocity increase from start to max in each barrel length.
I am currently loading up a test batch 6rnds each, hoping to test tomorrow. Curious to see how it plays out and whether I can learn anything, or whether its a dead end. All loads within published data.
Burn rate
charge weight
barrel length
How does one understand which powder and which charge weight is optimal for a cartridge and or barrel length. In general one would expect to simply be able to choose the powder with the highest velocity in the manual, however most of the manuals I have don't list barrel lengths, or they are longer or shorter barrels than what I have.
For example. In my case I am loading for 38spl currently.
158g Hi-Tek coted SWC
Powders I have are HP-38 and Power Pistol
2 pistols
357 mag chamber 6in barrel
38spl +P chamber 1.8in barrel
My plan was to shoot a start and a max charge of each (already worked up from start) in each barrel length. My hope was to understand from this how efficient each powder in each barrel length by velocity increase from start to max in each barrel length.
I am currently loading up a test batch 6rnds each, hoping to test tomorrow. Curious to see how it plays out and whether I can learn anything, or whether its a dead end. All loads within published data.
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