Re: nozler 168gr BT
My manual says 2.750 . If you have the tooling you could measure how far it is to the lands and then back it off .005 . Depending on your rifle that may be longer than you can load into the magazine . If thats the case then load them as long as you can and still stuff them in the magazine . they are fairly tolerant to jumping to the lands but the closer you can get them the better .