Larry I believe that offers ME PERSONALLY some tangible confirmation that "your" visual and weight sorting can indeed generate improvements.
If you shot cast bullets out to 600 at MOA and Im not guaranteed that your the best man behind the gun that could have been there (take no offense, theres always a better wind reader, trigger man somewhere) then your small data mass provides me (Im dumb and gullible) some confirmation that you can keep a cast bullet stable and happy, just like a jacketed bullet, at HV and at serious distance.
There was a banter about sorting a while back and I have no input or opinion on the subject nor shall I speak about it at all except for the above statement.
You have indeed given jacketed bullet performance, repeatable (in my uneducated opinion).
I have always sorted by weight to .1 and visually and I believe Joe B when he says the data needs to prove it, I don't understand the data but I believe him whole heartedly. I do sort, makes me feel good like many do and, well, it can't hurt right? I don't mind wasting time doing something. Im richer with time than money.
Although this is not a proper data lot, my gut tells me when you shoot to 600 and 1000 yards, the data lot can get smaller as the measurement standard has increased exponentially. You went from measuring in say .001, to millionths, in machinists terms.
But again Im poorly educated (truly) and that may not be true.
Here is the fact: It inspired me this morning to build a long range rifle of some kind. One that only shoots cast. I cheap and I am not rich, that makes for NO "I'm a sniper" rifles. I can't afford to shoot expensive bergers by the hundreds to punch paper, that the way it is. But I CAN shoot heat treated cast and many many thousands of them and I Can afford ONE good long range rifle.
Ive seen some scheutzen rifles make some really stupid small groups at 200, 1/2 MOA and SMALLER. Really stupid small, and repeatable. They are always cast and those guys don't shoot imperfect bullets, ever and they area always weight sorted. Ive been lured to begin to breach seat some rifles (walls/rollers) and this thread and report gives me some idea that maybe even your fixed performance could improve with breach seating a BR rifle, shooting cast. Or not....
Id like to hear your thoughts Larry (a different thread or by PM).
That was really good shooting too.
Appreciate you posting this.