Hope you can find a cr to fit. I have a browning 300 win. mag. with the BOSS and I love it but there is no way I'd fire the rifle without the cr under hunting condition. I have found it alot easier to get used to my rifle at the range with decreased recoil and that makes all the difference in the field. Good hunting.

I have a Browning BAR with a BOSS. I have found that the settings that are listed by Browning are kinda worthless when you load your own. I have found my sweet spots with diff. loads using the old fashioned trial and error method. Sometimes I get lucky and find the sweet spot quickly and sometimes not. And when I can't find it quickly, I have an excuse to go back to the range and shoot some more.
As for the BOSS CR, I would contact Winchester and have them send you one for free. I have 2 Brownings with BOSS and Both CR's were sent to me free of charge. But, my Brownings are rather new, maybe that makes a diff.

Do you own a Browning or a Winchester? The only settings I can find for my Winchester are from 1997 and have not been updated since. I shoot 120 Nosler BT. There is no setting for this though.