After some experimenting recently playing around with neck tension I figured out that identical loads except for NT shoot differantly. I never thought .001-.002 NT made a hill of beans of differance on accuracy until now. Below are 4 pictures of 2 differant loads. My 200 ACCUBOND load and my 178 AMAX load. The only differance in the 2 groups of each is NT. The 200 AB used .003 and .004" NT and the 178 AMAX used .001 and .003" NT. These are not the only groups that have done this. Scince I have started playing around with NT, every time it has changed it. If I leave it alone, the groups stay the same whether good or great.