So I have loaded for several other rifle cartridges over the hears, but this is my first venture into 7.62x39 . I have my press and dies set and am getting ready to put some loads together to start working it up. I am using accurate 1680 powder. I selected this powder as I will most likely be getting into 300 blackout in the not too distant future and wanted a powder that would work decently well in both. Rifle is a PSA AK with a 16 in chrome lined FN barrel.
Looking over the data.
Hornady shows a max of 23.9g
Hodgdon shows a start of 24.6 and a max of 27.3
Speer shows a start of 25.4 and a max of 28.2
Lees data mirrors Hodgdons, no surprise
my lyman manual does not have data for 1680
in my 8th edition western mirrors hodgdons data
My first inclination was to go with Hornadys data as they made the bullet. However both Hodgdon and western specifically list the sst bullet with those charge weights. I Don't want to push into speers data as it is a different bullet and its almost a full grain higher at max. Hornadys data also says it was fired in a 20in barrel SKS. does that have a lower pressure tolerance than the AK platform?
Trying to decide on a start and max to start working the load up. any thoughts? Anything I should know about 1680, its my first time using it as well.
Looking over the data.
Hornady shows a max of 23.9g
Hodgdon shows a start of 24.6 and a max of 27.3
Speer shows a start of 25.4 and a max of 28.2
Lees data mirrors Hodgdons, no surprise
my lyman manual does not have data for 1680
in my 8th edition western mirrors hodgdons data
My first inclination was to go with Hornadys data as they made the bullet. However both Hodgdon and western specifically list the sst bullet with those charge weights. I Don't want to push into speers data as it is a different bullet and its almost a full grain higher at max. Hornadys data also says it was fired in a 20in barrel SKS. does that have a lower pressure tolerance than the AK platform?
Trying to decide on a start and max to start working the load up. any thoughts? Anything I should know about 1680, its my first time using it as well.