Thread: My 7mm PRC is driving me nuts…

Originally Posted by tibo

This was across 63.5 to 64.2gn I do call this a velocity nod…Attachment 259076

If you want to approach it scientifically with Brian Litz and Hornardy scientists instead of following the "I believe" crowd then be my guest.

Yes the above data shows you were producing excellent reloads, proven by a solid sample size. You don't say how that sample grouped but if it was good then there is something now wrong with the rifle and or scope, assuming you are following the same load procedure etc. I recently reported on the lose recoil lug in a Sako 75, was likewise hard to diagnose without specific advice, but fixed, it changed the rifle. Could have fired a gazillion groups with it without finding a "node".

I've never experienced a barrel "going bad" but in the way you are describing but I'd say it's1 a possibility. I'd be inclined to try some of your loads in a rifle that is a known shooter, that will eliminate one possibility with a 10-15 shot group. Then look at rifle/scope mechanicals (again) and if it ain't them, then all is left is the barrel.