Nope, those are factory loads. The factory Hornady 108s shoot extremely well too, and the speed is pretty good. It took about 160 rounds for this barrel to stabilize and get to that speed. Its the factory win tac barrel, i think its a 26".
I am loading for berger 105 hybrids at 3050. They are lights out. I have not hunted with them yet. I have great luck with the hornady 108's. I've only had one runner. Not sure how the hybrids will expand at 500Y. Ill have to try it.
My factory 6CM barrel shot the factory Hornady 108s into about a half inch during break in. So I figured I'd give them a solid chance during load development.
I used Peterson brass, and had read about reduced case capacity and early pressure, so I started way low.
I popped quite a few groups in the 3/8" and under from 38.0 - 39.5 range of H4350 as I carefully worked my way up. From 39.7 - 40.7 things got erratic, but then came back together at 41.0gr...so much for pressure concerns, not a sign at all and I'm generally pretty conservative.
41.0 gave me my smallest group ever at 650 when I trued velocity - just under 2"
^ Probably a fluke, and I'll admit it.
I came down a tenth, held. 2 more for wind, and immediately re-shot it to confirm. Looks like I needed to come down another tenth.
^ That puts my velocity at 3,050-3,060 IIRC.
I did not have a very good experience with my first AI barrel, but this 6CM one hammers.
Currently, I've been using a rebarreled FN SPR in 6.5x47L with 130gr ELD-M to dispatch most of the critters this past fall and winter. I'm about 20 coyotes in, and have been extremely impressed with the terminal performance.
Now it is time for me to test the 108s in 6CM. I'm getting ahead of myself though and having a second 6CM barrel spun up for another rifle to do the same.