First post. New into reloading. Thanks everyone for posting info here.
I wanted to share my in-progress 150 BD2 load development in 7PRC as there doesnt seem to be much info out there yet in this combination.
Rifle: Seekins Havak Element 22" bbl 7PRC, Dead Air Nomad Ti
~250 rounds factory Hornady ELDX/ELDM/Cx down the barrel for break in and to fire form brass.
Factory 175 ELDX was 0.3 to 0.4 MOA at 300 yds. 2800 fps Average Velocity.
Factory 180 ELDM was similar accuracy. Factory 160 Cx copper was terrible, nearly 2.5 MOA!
Coarse powder testing with H1000, Hornday once shot brass, Fed 215 primers, and 150gr BD2s revealed light ejector marks at 68.5 grains.
The coarse powder testing rounds were 0.020 off the lands per Badlands recommendations.
I settled at 68.0 grains, ~3000 fps, 3 shot ES 8.9 fps to experiment with seating depth.
I tested seating depths between 10 and 100 thou off the lands, and got my smallest groups at 50 and 100 thou off (68.0 grn H1000).
I then loaded up 3 rounds each at 47, 50, and 53 thou off the lands.
I shot the three rounds at 47 thou and got a .30 MOA group at 200 yds, average velocity 3070 fps, ES 20.
While waiting for the barrel/can to cool before the next string, I notice a hairline crack on a weld on the Nomad Ti....
Can is currently send back for repair (hopefully) so Ill be taking a break in fine tuning this load.
I'll report back with the final load specs when I get my can back.
In the meantime, I figured to share this preliminary data and load recipe with the hope that I can help someone else save on components.