Originally Posted by ICANHITHIMMAN
I here what you saying about human error, thats why one group is not good enough, you need to shoot multiple groups on diffrent days and in diffrent conditions. This is the only way to validate that you rifle and you are shooting to you potential.
Great point! When I was doing load development for the same 223 referenced above, I had a load that shot 5 rounds into .11 inches. I was floored! and promptly spent the next month trying to shoot that group with that combo again.
I had to take a step back and realize that I had other loads shooting much more consistently in the .2's and the load I was chasing averaged in the .3's with the random group in the .1's.
Ultimately, the load that shoots consistently in a variety of conditions is the winner.
Human error does play a role which is why your handloads need to be as perfect and consistent as possible so when you do shoot a bad group, you can look at yourself for improvement.