Thread: 3 shot groups are useless!

Originally Posted by gimp

The combination of good system and simple approach certainly seems to make it easy when you discard all the nonsense. Get good data quickly, without meaningless fiddling, and you're away. Load developed and tested successfully to 800m in 19 rounds, and about 2 hours all up including driving. 1 round left ready to shoot a deer even.

Not all bullets shoot well in some barrels.
Your load appears to be an easy one because the barrel likes the bullet.
Good data quickly could be shown with the initial 3 shot group... If it is over MOA then don't bother continuing with the current load or possibly even change bullet.

I have done some loads in my rifles that just straight shot good with the charge ladder to find pressure and I knew the load was going to be quick and easy.
Others shot good initially but then issues appeared down the track I. E. 80gr eldm in the 223, initially shot brilliant at the peak of summer but shot shit once temps cooled off.
When loads don't come easily then the "meaningless tinkering " starts but you can't tell what was meaningless or not until you either crack the good load or realise it just ain't gonna shoot good.
When you think you have a decent load then your multiple x# of shot groups come into play to gain confidence in the loads potential/ability.