Green Dot is a faster powder & will Burn, MUCH, MUCH more reliably than 7625 ever thought about at low pressure & particularly in cool temps. Plus you use less of it & its cheaper per unit to boot. Better all the way around than 7625 for anything other than the heavier loads for which 7625 was "Designed".
I've always wondered, whenever I read about 5,000 psi loads, whether some folks have determined that if low pressure is good, then even lower pressure must be better. Anyone have any basis, from vintage double literature, for keeping pressure that low? I sometimes think it must be people who were winners in a limbo contest: How low can you go? As noted above, one issue with very low pressure loads can be performance in cold weather. A lot of the old reloading manuals would carry notations such as "not a good cold weather load" on some low pressure recipes.
