Hopefully I’m in the right thread..it’s been awhile. So I’m building a hunting rifle. It’s chambered in 300 HAM’R. Has an 18” barrel with a BCM A5 stock kit . I’m going to be running 150gr through it for now. I think they’re around 2300FPS rounds. I can verify if that becomes relevant. I also have the Super 42 Spring to throw something else in there.

So my question is will the Geissele SUPER 42 spring work with a BCM/VLTOR A5, standard VLTOR A5-0 Buffer shooting 150gr 300 HAMR OUT OF AN 18” barrel? Has anyone tried anything close to that?