Hi mate. I had a thread about this (you can find it
here) but in a nutshell my findings are:
American eagle 150 grain FMJ (very decent grouping consistently)
Sako 123 grain soft point (very decent grouping time after time)
Sako 150 grain game point (very decent grouping most of the time)
Federal 150 grain soft point (best grouping time after time)
Winchester 150 grain soft point (got them to group reliably at the end)
My rifle is not so sure about
Sako 180 grain hammer point (not consistent in grouping well )
Now, I know that the shooter has a lot to do with grouping etc, I am just reporting my findings as I and the person helping me zero the rifle saw them. The Sako 123 grain grouped reliably first time round and kept performing well. The Federal 150 grain were amazing from the word go. I was able to put bullet on bullet at 100 metres. Very impressed! The Winchester 150 grain soft point gave me a lot of trouble. They have a mighty kick in them and probably this is why I had to shoot a fair few before I got used to them. I was finally able to shoot them very reliably. The Sako 150 grain performed well after I got used to the fact that they seem to shoot low and then climb to the target. I never thought that possible. Maybe they do not and I am imagining things... The Sako 180 grain seem to be the hardest to produce a decent group, but maybe it is my fault. I do not know. I will have to try again sometime...