I loaded up some 69grain Sierra matchkings i had laying around for my 22-250 with a 1-12 twist even though the box says 1-7 to 1-10 only.

I have put roughly 20 down range at about 3100fps and all are making nice round holes at 100 yds and are grouping pretty decent for a start out load.

Since they are stable at 100 would they remain that way on out to longer ranges? I haven't had a chance to stretch them out yet maybe in the next few days. I'm gonna try to get them a little bit faster and see if they still shoot as well and see if i can't shoot out to about 300 next time.