300 Norma Magnum

[goosendmax]

Found some good load data from Vihtavuori’s website for 300 Norma Magnum but obviously can’t find any N565 or N570 powder due to ammogeddon.
I have plenty of H1000 and IMR 7977 but can’t find any “reliable” load data.
Anyone have any good start loads for these powders? Or have any reliable sources for load data involving these powders? Thank you in advance for your help.

 

[H3avyhitt3r]

I'm running 225 eld match with 82.5 gr of h1000 out of a 26" tube. Getting 2975fps 1000' above sea level

 

[kblack583]

Not sure what bullet you're thinking of. My go to load: 230 Berger Hybrid, 83.0g H1000, CCI 250, Lapua Brass, 28" barrel, 1:8 twist - 2970 fps. Always start lower and work up this powder weight.