I recently scored some SR 4756 powder. I did an Advanced Search to see what load data may be available on this site. Got about 41 pages that contain the "SR 4756" text. It took a while to go through them. This is what I think I understand about the powder.
It has a slower burn rate than Unique and a faster burn rate than Herco. I should be able to use data slightly less than Herco loads and not be overly concerned about chamber pressures. First uses will be in 30-06, 308 Win, 6.5 Carcano and 6.5 Swede. Loads will be from moderate to light since I want to produce loads for kids to enjoy. Not a lot of data on light loads was found. Probably will not exceed 1200-1300 fps; depending on where I find some accuracy.
Anyone see any concerns that I need to be aware of? Thanks in advance for any comments.
Pirate69