Yeah, I'm happy with the way the load development is going with the .25CM... It was a hot as fuck, muggy as hell, sweaty swamp-ass day at the range... Barometric pressure was higher than normal, heat was higher than normal, and everything was just a horrible Alabama summer dog day...But living here my whole life, I'm used to it, just doesn't make me hate it any less. I much prefer to shoot during the fall/winter/springtime with lower pressures, lower temps, not sweating sitting still with sweat dripping into your eyes while you're trying to shoot...
So, as it appears, 43.5gr of StaBall 6.5 with the Berger 133 Elite is doing quite well. I'm very happy with the 5 shot groups, and the velocities are VERY impressive for a 20" barrel with 133gr heavies right @ +/- 2,800 FPS MV average. If I was only doing 3-shot groups, I would have had quite a few 1/4 MOA groups, but I like to do 5 shot groups for consistency with my target rifles. Hunting rifles, I never plan to take more than 3 shots consecutively, so 3-shot groups works fine for me for those.
Here's a few shots with the Otter Creek Labs Hydrogen-S 6.5mm (with cover on it), and my new TBAC Magnus-S HUB that I'm still waiting on my stamp for (SS Trust)... It sounds amazing with both of them, as you'll hear in a future video...
Here's the first 2 groups of the day... This first group (with the low flier) was shots 1-5 with on freshly cleaned cold bore (right before I left the house for the range)...
And the 2nd group was shots 6-10 after it settled back in... I'm very happy with these results.