01-08-2022, 03:16 PM
Thanks grayfox, sounds like I might be chasing my tail. I only have 105 rounds through this barrel. I do have access to a chronograph but only used it for one load that yielded just under 2400 fps, but the groups were crap so I went back to the drawing board. I do have a picture of the 123 gr Grendel page from the latest Hornady manual, but thats it as far as Hornady reloading data. The other element is the weather. Obviously winter isnt the best time to be trying to develop a load, but I wouldnt have expected groups this bad!