I decided to put this here, rather than in the marksmanship section, because this is not a marksmanship issue. This is an issue with a repeatable, predictable, and ultimately correctable cold bore deviation on my AIAE MKIII. This is the first rifle that I have had that has this issue. Every cold bore shot is exactly 2.125" low, every time. The second shot goes to POA/POI. I can dial .6mil on the scope, take the .6 off, and hit the same POI, every time. I shoot with another member that has a .2-.3mil deviation on his AE MKI. He has lived with it, and adjusted for it, for the life of his rifle, with fine results.
My OCD is getting the best of me on this issue, so my first question is, why does this happen? Assume that this is not shooter error, because in my case, as well as my shooting partner it is not. What happens to that rifle/barrel/mating surfaces, after 1 shot is fired?..., you can walk away for lunch for an hour or two, come back and have no deviation, but let it sit overnight, and in the am, the CB deviation is back?
My second question is something is moving or settling repeatably, causing the same results every time, and I have measured it, and again, can correct for it....however I am completely stumped. I am very curious about the mechanics of this "phenomenon".
I would like a smiths' perspective on this issue, because there has to be a mechanical flaw somewhere in the system.
Note:
1. I have not had the AE out of the chassis.
2. I have not bore scoped anything
3. Different loads with different bullets 168/175 show the same effects
My OCD is getting the best of me on this issue, so my first question is, why does this happen? Assume that this is not shooter error, because in my case, as well as my shooting partner it is not. What happens to that rifle/barrel/mating surfaces, after 1 shot is fired?..., you can walk away for lunch for an hour or two, come back and have no deviation, but let it sit overnight, and in the am, the CB deviation is back?
My second question is something is moving or settling repeatably, causing the same results every time, and I have measured it, and again, can correct for it....however I am completely stumped. I am very curious about the mechanics of this "phenomenon".
I would like a smiths' perspective on this issue, because there has to be a mechanical flaw somewhere in the system.
Note:
1. I have not had the AE out of the chassis.
2. I have not bore scoped anything
3. Different loads with different bullets 168/175 show the same effects