Thread: Finally getting set up

I think it would be worth agreeing on a definition of a 3 MOA rifle so we're speaking the same language.


These are the ways that I can identify in which you can define precision, or the combination of precision and accuracy - is a 3MOA rifle (or rifle and shooter system).....

1. A rifle that produces an average group size (of however many data points) of 3 MOA
2. A rifle that has produced a best group size ever of 3MOA
3. A rifle that has produced a worst group size ever of 3MOA
4. A rifle that has a calculated hit probability, due to dispersion of rifle/shooter system, of 100% or near enough, on a 3MOA target (using mean radius x 4.16 correction)
5. A rifle/shooter system that has demonstrated 100% hits (from however many data points) on a real 3MOA target

Then to add additional complexity - at which range? I'd say I have about a 1.25 or maybe 1 moa rifle by definitions 4&5 with my .223 - at 100m. At 1000m........ not so much



I think definition 4 is the most clearly linked to real-world predictions, because it takes into account the position of each measured shot relative to point of aim (or mean point of impact), rather than just the distance between 2 of them - as long as you have collected enough data to do it.


We can take this yarn to another thread if you prefer ...