SloppyJ
WKR
- Joined
- Feb 24, 2023
- Messages
- 1,792
Not apples to apples but I read a bunch of info about staball HD in 300prc and some were having success with BR2s. That's all I have and can't find any magnum primers so I ran some tests. They were the first 30 shots out of my barrel too.
I found that I had some crazy velocity inconsistencies where on multiple shots a 0.5gr increase would result in a velocity loss of 25-30fps. I chalked it up to that powder needing some extra ignition. I didn't see that with H1000 or Retumbo.
I ran it all the way up to 0.6gr over max charge and I was still 100fps slower than listed velocity. I am missing 2" of barrel as well compared to the test rig.
I sweet talked my buddy out of 100 magnum primers and I'm going to run a few more tests with it to see if there's a difference. My gut says that the ball powder will want a magnum primer.
I found that I had some crazy velocity inconsistencies where on multiple shots a 0.5gr increase would result in a velocity loss of 25-30fps. I chalked it up to that powder needing some extra ignition. I didn't see that with H1000 or Retumbo.
I ran it all the way up to 0.6gr over max charge and I was still 100fps slower than listed velocity. I am missing 2" of barrel as well compared to the test rig.
I sweet talked my buddy out of 100 magnum primers and I'm going to run a few more tests with it to see if there's a difference. My gut says that the ball powder will want a magnum primer.