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Norma Golden Target Match 6.5CM 143gr

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Forgot to post these as well, weighed the factory charge. H4350 maybe?
 

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Same ammunition from Norma, Tikka TAC A1 (24" factory barrel) rifle, I fired 40 shots and measured 2611.5 fps average velocity and 15.41 fps SD.
5 shots still seem too few to have a conclusion as close as possible to the truth, and always with a small number of shots I had a lower SD than the real one. That's why when I want to have a real conclusion I use somewhere around 20 sample size shots
 
I'll pull a few apart and see what I have. Shoots really well in one of my barrels but the ES and SD over 20-30shots gets too high. I will say if you cull 3-4 shots it's respectable for factory ammo. Problem is you don't know which rounds it will be.