I have a pretty good-shooting 6.5 that will shoot .25-.3 MOA for five shots when conditions are good, and easily averages .4 or so with its best loads. I can't tell any difference between Hornady and Lapua brass as far as accuracy. Dropping the charge .5 gr in the Lapua gives identical velocityand POI. Everyone says the Lapua brass will last way longer, but I can't verify that yet.

I made mine from .22-250 Lapua brass, necked up and fireformed. It comes up a bit short of OAL, but it isn't an issue.