Woooooooohooooooooo!!!!!
update everybody!!!!
got the chrono and got to shoot over it today. I am beyond pleased. I closed the muzzle brake, not sure if that actually makes the barrel an honest 26 inch but it's one of those savage brakes you can just twist to open or close. The point of impact shifted wildly from doing this, gonna chrono it again sometime with the brake open and if it's not losing much I'll just leave it open.
anyways….I'll just include the pics of the chronograph readings about 15 feet from the muzzle. I had a hard time believing it, would have been a skeptic in the past but folks such as
@scope-eye and
@ButterBean helped me believe in this kind of light and fast performance again.
again, the specs are Peterson brass, fed 215m primers, 89.5-90.0 grains of superformance (I wasn't as meticulous down to the tenth of a grain as i sometimes am) powder, lightly compressed under a 120 grain Barnes TAC-TX (initially designed for .300 blackout, we're going a lot faster haha) that is treated with hexagonal boron nitride.
no primer cratering, moderate flattening, no ejector marks on brass, no stiff bolt at all (operated easily with one finger, cases just lazily fall out). Upon resizing, no notable case length change, no web expansion, no discernible difference in primer pocket tightness from virgin brass.
I hate that we have to say this but obviously this is a warm load and i worked it up slowly and safely. This is safe and functional in my firearm, not to be assumed safe and functional in others. Start at least 10 grains under this and work up if you should choose to do so. We are adults here, let us be responsible for ourselves even as we celebrate with each other's achievements.
Be prepared to try and understand the embarrassing happy dance I did when I saw this…