I will just addd for whatever use it may be to anyone, "IF" you are using any of these loads in temps where you are shivering rather than sweating, be extremely careful of 7625 loads or any other loads in that burn range or slower. These slower powders do not always perform well at low pressures combined with cool temperatures. They were designed for heavier shot loads, higher velocities or both & to gain this rely on deterrant coatings to "Slow" their burn rates. PB is much more reliable as temps drop & in the Alliant line Green Dot is about the max burn rate for low pressure use. Loads simply need to be adjusted downward to acheive desirable pressure range. Personally I have no qualms with any of my sound Damascus guns with loads in the 7.5K range.
