Irregular velocities with 7prc loads

Better than "Most" of, the IMR Powders, but probably, Not as "Good" as some of, the very Best, Hogdon Powders,.. like, H-4831, etc.
You might also Try, working Up loads with, F-215 Magnum Primers and, the StaBall HD.
I Use, a LOT of StaBall 65, in my 6.5 Creed and even Here, in Winter at 20 Degrees Above,. NO, Accuracy, "issues" for Me,.. Yet.
My son will Be Testing his 7PRC Loads, in the Next 2-3 Weeks,. Hopefully ( He's got, 50 Loaded / ready to, Go ).
Johrichal said:
Ive never used Staball H D how is the temp stability of it?t
Click to expand...
 
You Might Try calling, the St Mark's, Florida, Olin / Winchester, Powder Plant and Ask,. that Question.
 
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The Boise / Meridian,.. area and I Shoot Out, in the Desert towards Mountain Home, when It's Above 20 Degrees and the Wind is Below, 4-5 MPH,.
In fact, I'm Heading Out soon to, Shoot my 6.5 Creed ( Check Zero @ 200 Yds ) and Play with my Marlin .30-30 On, Steel Plates.
 
Cour-da-elene is, a Pretty Spot and a Lot of Retired folks live there.
I still Had to Work, back when moving to, Boise 33 years ago and that's was Where, the Job's / Money was, then.
As i got ready to Leave to go Shoot, the Wind kicked Up to, 7 to 12 MPH ( the Wind Chill is, Way Down there ! ) Bummer !
But, I have More info from my son on, the 7 PRC.
He is also trying, RamShot Grand, Powder ( in Case, the HD load doesn't shoot, up to,. "expectations" ).
He got 2,950 FPS with it and with, "safe looking" pressures,.. hogdon has data.
Another powder you might try is, VhitaVouri, N-570 ( the New Vhit Powders are much better, on Temp, Now )
 
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Johrichal,..
My son said that, Tests he saw ( a Couple of years, ago ) and from, a guy he knows, on Long Range Only,. for StaBall HD, the "Temp Sensitivity" was, only 10 fps loss, on Temp's from, a span of,.. 30* Low to, 75 Degree's.
Hope that, Help's
 
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Here a little info on Staball Powders. I try and scan and save any info on powders and how they work in temp and other related items. Some of my filling system isn't the greatest. Work in progress😁
 

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