JGRaider
WKR
Excessive velocity should be the first indicator of excessive pressure.
Thank you and do you have pressure signs with this load? According to this GRT tool, assuming the same case length (2.029), COL (2.925), 9 twist, and 55.3 gr. H2O capacity, your hitting a pmax of 65,174 psi. Reducing the COL (due to the 150 being shorter than 162) to 2.850" increases pressure to 69,195 psi.This is why I stopped experimenting with other bullets and other powder.
500 yards, prone shooting off my hunting pack, 150 eldx, 46.2 gr Big Game.
Thank you for sharing. Unless the H2O capacity or something else is off on this tool, something must be wrong with the calculations. The Big Game load exhibits significantly higher pmax than the SB 6.5 load and you're not seeing pressure.No pressure signs.
No ejector marks, no heavy bolt lift, velocity is 2780, so it’s not a barn burner. Primer pockets are tight, I’m on my 4th reloading with no issues.
Edit to add, same load (slightly different OAL) in three rifles. No pressure signs.
Been using this load for many years.
P
Thank you for sharing. Unless the H2O capacity or something else is off on this tool, something must be wrong with the calculations. The Big Game load exhibits significantly higher pmax than the SB 6.5 load and you're not seeing pressure.
I can't remember, what brass are you typically running?
You guys should have Hodgdon's data and GRT duke it out because hodgdon has two 150 gr loads listed @ 46.2 gr of big game with associated pressures.
This is why I stopped experimenting with other bullets and other powder.
View attachment 765478
500 yards, prone shooting off my hunting pack, 150 eldx, 46.2 gr Big Game.
P
Hodgdon uses 1:9.5 twist as well, and when I change twist rate in GRT from 1:9 to 1:9.5 and visce versa, there is no change in pressure.You guys should have Hodgdon's data and GRT duke it out because hodgdon has two 150 gr loads listed @ 46.2 gr of big game with associated pressures.
This is why I stopped experimenting with other bullets and other powder.
View attachment 765478
500 yards, prone shooting off my hunting pack, 150 eldx, 46.2 gr Big Game.
P
Remember, what you use a a seating depth along with case volume will determine your load ratio. the deeper your bullet seats in the case will also increase pressures.Hodgdon uses 1:9.5 twist as well, and when I change twist rate in GRT from 1:9 to 1:9.5 and visce versa, there is no change in pressure.
Remember, what you use a a seating depth along with case volume will determine your load ratio. the deeper your bullet seats in the case will also increase pressures.
Sounds like my daughters with some of my pistols.He has commindered my tikka, so I recently put together another 7mm-08 for myself.