How long ago did you have that experience with the 6.5x55?
It was probably 10 years ago, at least. Maybe 12. No matter what load I tried, 1 1/2 to 2 inches at a 100 was it.
I read a good bit after I bought mine. Howa had some throat issues with their rifles for a while. I forget what year it was, but fairly recently they made some changes. Mine is brand new. The first (and only to this point) load I tried, I sighted it in and shot a 3 shot accuracy group that went into about 3/4 inch.