Rage trip yesterday after work.
I changed my mind regarding the chrono and used that also. Figured that since it do not affect the POI, it is better to use it and collect data at the same time since I am trying lower charges.
Used the newer brass for this test.
Jump to the lands is 1.0mm (~0.0393").
About +3C and a little wind from 10-11 a clock.
All shots were fired in "Round Robin"-style.
Speed results from the different charges. Have only collected the average data for this test. Powder as previous VV N530
1.
28.1gr
Avg: 844 m/s
SD: 3
ES: 7
2.
28.2gr
Avg: 847 m/s
SD: 1
ES: 3
3.
28.3gr
Avg: 848 m/s
SD: 3
ES: 8
4.
28.4gr (same load as I tested and focused on before)
Avg: 850 m/s
SD: 2
ES: 7
5.
28.5gr
Avg: 855 m/s
SD: 3
ES: 7
And result on the OCW target.
[ATTACH=CONFIG]15751[/ATTACH]
No.1 was the best for sure, and the last shot was of course the flyer on the left
No.2 and No.3 had the same procedure. First shot landed high right on both of them. Then 3 shots on quite the same POI and then one more high right. The No.4 was the first shot the low right, after that three of them landed around the same POI of No.2 and No.3. The No.5 was not nice at all.
Must admit that I was looking forward to find 5 small round groups on all charges. But that did not happened. And also, the charge 28.4gr that I thought to be a "winner" from previous tests did not shine at all.
But going forward. If I look at where the bullets have landed and the average speed, the load 28.3gr might be something to test different seating depth around. Or should I redo the whole test one more time to see if there is any confirmations in these results from this test?
I changed my mind regarding the chrono and used that also. Figured that since it do not affect the POI, it is better to use it and collect data at the same time since I am trying lower charges.
Used the newer brass for this test.
Jump to the lands is 1.0mm (~0.0393").
About +3C and a little wind from 10-11 a clock.
All shots were fired in "Round Robin"-style.
Speed results from the different charges. Have only collected the average data for this test. Powder as previous VV N530
1.
28.1gr
Avg: 844 m/s
SD: 3
ES: 7
2.
28.2gr
Avg: 847 m/s
SD: 1
ES: 3
3.
28.3gr
Avg: 848 m/s
SD: 3
ES: 8
4.
28.4gr (same load as I tested and focused on before)
Avg: 850 m/s
SD: 2
ES: 7
5.
28.5gr
Avg: 855 m/s
SD: 3
ES: 7
And result on the OCW target.
[ATTACH=CONFIG]15751[/ATTACH]
No.1 was the best for sure, and the last shot was of course the flyer on the left
No.2 and No.3 had the same procedure. First shot landed high right on both of them. Then 3 shots on quite the same POI and then one more high right. The No.4 was the first shot the low right, after that three of them landed around the same POI of No.2 and No.3. The No.5 was not nice at all.
Must admit that I was looking forward to find 5 small round groups on all charges. But that did not happened. And also, the charge 28.4gr that I thought to be a "winner" from previous tests did not shine at all.
But going forward. If I look at where the bullets have landed and the average speed, the load 28.3gr might be something to test different seating depth around. Or should I redo the whole test one more time to see if there is any confirmations in these results from this test?