I’ve got around 800 of the subject bullets. I’d trade for once fired 6.5 CM Peterson or Norma Prime Ammo brass, factory Prime 130gr Ammo, or Alpha 6 dasher brass.
$300 shipped (net to me)if you want to buy outright.
Chronograph makes it easier. Same barrel manufacturer, same smith setting it up.... you might be good with your current round. Definitely would give it a chance.
New Alpha virgin brass. 32.4 gr of Varget, 105 hybrid, BR4 primer, A-team chamber, 5 shot group. 200 rds on the barrel. 2950 fps. Brian A. Has run some pretty extensive testing on the brass.
I have 2 Gemtechs with quick detach on 5 different rifles. POI changes a bit with and without, but the groups are the same. On my hunting rifle, 6.5, the groups are actually tighter with the gemtech. That’s my experience