Re: Load Development... Ladder Day Revelations???
there are several links here on back to Creighton Audette who is a famous hightpower/NRA long range smith and shooter for highpower/NRA LR rifles.
he also wrote this about 15-20 years ago or more. The accuracy standard for HP then was much different and the use of chronos was not as widespread as today. Plus all these guns had match grade barrels on them. ie my insiststance that you have to have accurate guns and this is not for many factory guns.
You have to have faith that your bullet POI is indicitave of the accuracy of that gun. a 2-3" margin of POI error at 300 is not acceptable and will not show you anything as CS has pointed out.
In the last 10 years in 1k BR we have cut groups by almost 50% with the 5 shot record in IBS standing at 1.5" and 3.3 inches for 10 shots at 1000.
what I described above is my method and it was shown to me by several knowledgable (world class) shooters.
I have proven repeatedly with an accurate rifle this works and is repeatable. I have upgraded my reloading techniques and equipment such as all BR quality and Oehler 35 with 4 ft and 8 ft bars.
read, try and see what works for you, but doubt you are going to find a current definitive authority.