how low of a charge can i put behind a 12g slug

Shotshells are not like brass rifle shells, many times a shotshell with a load just a few grains under the recommended will give a very "off" sounding report. Combustion within a shotshell is not as well contained as in a rifle, with many ways for the gases to pass the wad/shotcharge/slug. I would stick to the recommended loads from the powder manufacturers, but i think you could sub a 1 oz. slug load with a 1oz. shot load, as most slug loads are at the top end. There are some very light loads using 7625 and others which generate pressures in the 6,000LUP range, which I'm sure could be used with your 1oz. slug.
 
use published loads :nest: (as close to but not over published loads)
lots of loads online

changing componets can go G:f:P:

even changing one hull type to another manufacture can increase pressure:eek:
 
just having some fun said:
use published loads :nest: (as close to but not over published loads)
lots of loads online

changing componets can go G:f:P:

even changing one hull type to another manufacture can increase pressure:eek:
Click to expand...

Some people never go crazy
What truly boring lives they must lead

edit: I do substitute components and go over the published loads in baby steps.
that's because published loads sometimes make no sense. The highest loads in one manual are the starting loads in another.
 
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