Originally Posted by
Lost River
I have gone as low as 19.5 grains of H110, but it is not a powder that likes reduced charges.
With that said, there is absolutely NO reason not to do it the easiest way possible..
Take your heavy, 300-320 grain cast bullet and push it with 10 grains of Unique!
You will get the desired velocity range you seek and it will not only be easy on the guns, but easy on you too.
I have done so before, and accuracy was quite good. That said, it did not fill a niche/role for me, and my simple "3 loads for all my big bore needs" philosophy has worked very well, so I stick with it, only fiddling with other things on occasion.