Good Mernin' folks. I'm looking for some help analyzing results from my first load development (pictures attached). Short story long I was looking to mimic velocity/accuracy from a Nosler factory load. Sifting through the various load development techniques I decided to try the 10 shot ladder method looking for the accuracy nodes. Nosler didnt have any published data on H1000 with the 160 AB so I went to my Lyman manual. Working in 0.6g increments I shot (2) 10 round strings and recorded velocity with magneto speed. Unfortunately coloring the bullets did not show up on the target so I have to rely on velocity for this test. I'm not sure where to take it from here.
Rambling thoughts/notes:
1. In general the second string was hotter, likely due to warmer barrel.
2. Possible accuracy node in the 67g - 67.6 although its clear as mud. If this range proves to be most accurate are those velocities/es acceptable for a 7mm mag primarliy used for a mule deer/aoudad gun in the 300-500yrd(max) range?
3. ES (with the exception of shots at 68.8) from 68.2g to 70g was tight but no accuracy node here.
4. Nosler factory load averaging 3035fps and 3052 ( with 69.8gr of a mystery flattened ball powder)
5. No viable pressure signs, but 70g was max load from Lyman and 4g over max load from Hodgon website. Its possible the bolt might've been a little tighter at 70g but that could be psychological knowing I was at a max load and over another.
6. Would've liked to shot the 3rd string I loaded up but ran out of time.
Alright guys I'll let yall take it from here.
Thanks,
Rambling thoughts/notes:
1. In general the second string was hotter, likely due to warmer barrel.
2. Possible accuracy node in the 67g - 67.6 although its clear as mud. If this range proves to be most accurate are those velocities/es acceptable for a 7mm mag primarliy used for a mule deer/aoudad gun in the 300-500yrd(max) range?
3. ES (with the exception of shots at 68.8) from 68.2g to 70g was tight but no accuracy node here.
4. Nosler factory load averaging 3035fps and 3052 ( with 69.8gr of a mystery flattened ball powder)
5. No viable pressure signs, but 70g was max load from Lyman and 4g over max load from Hodgon website. Its possible the bolt might've been a little tighter at 70g but that could be psychological knowing I was at a max load and over another.
6. Would've liked to shot the 3rd string I loaded up but ran out of time.
Alright guys I'll let yall take it from here.
Thanks,