i love this rifle!!!  no break-in performed except for cleaning after sighting in (about 25rds)  it was a windy day, and i didn't have a sandbag to rest the butt-stock on, shooting from a bi-pod and i'm still fairly new to rifle shooting (got my 10FP back in April).
here are the results of my shooting at 100yrds (3 shot).  the barrel is a 1:12 twist.  the * indicates that it was my error.
Black Hills 52gr Match Hollow Point (blue box) .65"  .88"  .59"  1.01"  
MCC 55gr FMJ M5 *1.5"  1.1"  .83"  1.18"
Win 55gr FMJ USA223R1 *2.57"  .53"  *1.74"
PMC 55gr FMJ-BT *1.45  .91"  1.08"
Win 45gr JHP USA2232  .52"  1.05"  1.13"  .82"
American Eagle 55gr FMJ-BT  *1.34"  1.10"  .92"

That is very good for the FMJ loads. I don't think my bolt Varmint rifles will do that. I have the same rifle on order except mine is the 1 in 8" twist. Your Black Hills load is a better indicator of what you can expect from top grade factory ammo and if you hand load it will only get better. How long did you have to wait for delievery? My order is starting week seven.

no wait...picked it up at a gun show, the last one of 4 that he had.

Nice.  I'm getting the same sort of results in my BM Varminter.