Thread: 7PRC load data

Thanks Kelton and Tibo. That’s really helpful.

Interesting about the LR primers with H4831sc. Did it help in giving more speed with the same charge weight or just less pressure signs so could increase your charge weight more?

And kelton , would you ladder test in half grain increments to start with from 66-69gr ? And then do a .3gr ladder once you’ve found when the pressure starts? Or just do one really big ladder test in .3gr increments all the way from 66-69?

LRP helped getting better es and sd. As for brass, Hornady brass was really inconsistent, I was getting loose primer pocket after one firing with some, others all good, it made it really hard reading pressure sign.

Originally Posted by Bowhunta

Thanks Kelton and Tibo. That’s really helpful.

Interesting about the LR primers with H4831sc. Did it help in giving more speed with the same charge weight or just less pressure signs so could increase your charge weight more?

And kelton , would you ladder test in half grain increments to start with from 66-69gr ? And then do a .3gr ladder once you’ve found when the pressure starts? Or just do one really big ladder test in .3gr increments all the way from 66-69?

Just do .5s mate you won’t run into any major issues if you get above pressure it’ll only be a small difference my rule of thumb is large rifle up to 70gns and magnum over 70 gns