No other brass. I was hoping to find some Alpha SRP 25 Creedmoor, but it hasn't been up for sale. These 2 new rifles are the only 25 CMs I have. I would absolutely love the IDOD, but it's out of my budget for one cartridge. Everything else is no-turn.
when I 1st had the heavy bolt lift I do think I had a very slightly wet neck Combined with just barely having enough clearance. With the real attention to detail on drying the bolt lift wasn't as heavy today. I think removing a 1/2 to 1 thou it will take care of it. After looking into neck turning deeper I think I would have the IDOD and turn everything at least 1 time when new.
On the carbon on the neck I'm wondering with the charge so low at 41.0 grains if the rifle with the 450s took longer to build pressure and seal, where the lightweight rifle with the large primers didn't flash hotter quicker thus sealing the neck before gas could get around it.
Thanks for your help!