Hugnot
Well-Known Member
More on StaBall HD & the 6.5-06
I shot some groups & got some Magneto Speed chrony results
![IMG_2002.JPG IMG_2002.JPG](https://www.longrangehunting.com/data/attachments/470/470616-e24799412d0f5f0e73b201f098659bc5.jpg)
![Screenshot (700).png Screenshot (700).png](https://www.longrangehunting.com/data/attachments/470/470619-097cfc230045dbd0654c42b6289b5d63.jpg)
![IMG_1996.JPG IMG_1996.JPG](https://www.longrangehunting.com/data/attachments/470/470618-efec511ddc18e224f091337633b29edd.jpg)
![Screenshot (701).png Screenshot (701).png](https://www.longrangehunting.com/data/attachments/470/470620-ff8d784de5bbd725fa6c6728801e7d0f.jpg)
Groups tightened up a bit with another .5 grains of Staball HD, 56.5 on July 8. 57.0 on July 18. I replaced the trigger on my Ruger MKII with a Timney adjusted at a little less than 3 pounds for the group shot on July 18 & that helped. Groups fired without Magneto Speed bayonet.
Best group with ammo having extreme spread of 63 fps - needs improvement.
Group at top, not that bad despite extreme spread of 63 fps.
This lot of ammo would produce an average velocity difference of 38 fps between high & low averages with a 95 % probability. At 1000 yards, with a 200-yard zero, average elevation differences on-target hits could be expected between 297 & 307 inches, about 1 MOA. My goal is to get the ES under 20 with a 20-round sample.
Magic would occur with good vibes & zippo extreme spread.
Culpepper has it right!
I shot some groups & got some Magneto Speed chrony results
![IMG_2002.JPG IMG_2002.JPG](https://www.longrangehunting.com/data/attachments/470/470616-e24799412d0f5f0e73b201f098659bc5.jpg)
![Screenshot (700).png Screenshot (700).png](https://www.longrangehunting.com/data/attachments/470/470619-097cfc230045dbd0654c42b6289b5d63.jpg)
![IMG_1996.JPG IMG_1996.JPG](https://www.longrangehunting.com/data/attachments/470/470618-efec511ddc18e224f091337633b29edd.jpg)
![Screenshot (701).png Screenshot (701).png](https://www.longrangehunting.com/data/attachments/470/470620-ff8d784de5bbd725fa6c6728801e7d0f.jpg)
Groups tightened up a bit with another .5 grains of Staball HD, 56.5 on July 8. 57.0 on July 18. I replaced the trigger on my Ruger MKII with a Timney adjusted at a little less than 3 pounds for the group shot on July 18 & that helped. Groups fired without Magneto Speed bayonet.
Best group with ammo having extreme spread of 63 fps - needs improvement.
Group at top, not that bad despite extreme spread of 63 fps.
This lot of ammo would produce an average velocity difference of 38 fps between high & low averages with a 95 % probability. At 1000 yards, with a 200-yard zero, average elevation differences on-target hits could be expected between 297 & 307 inches, about 1 MOA. My goal is to get the ES under 20 with a 20-round sample.
Magic would occur with good vibes & zippo extreme spread.
Culpepper has it right!
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