I really would try the 180's and see how they group....U might not be real happy..... this bullet will not carry nor will it buck any kind of wind with its low BC....just quit trying to think about it so much....find the ammo that groups best out of your rifle and go with that......... it's really quite simple!!!!!! and for sure have a back up rifle!!! but also make sure it and you are compatible just don't borrow your nieghbors gun and call it good!!!!!!!!