Using a Stoney Point Bullet Seating Gauge I determined the OA length where the Nosler 150gt Ballistic Tip touches the lands. I backed off .020 and want to use this length as a start to develope a load. But at this length the shell will not fit in the magazine of my Weatherby Vanguard. The Max OAL in the Sierra Reloading manual is 2.800 . I am at 2.900 and if I use the former dimention, that would have my bullet .120 off the lands. Is this reasonable? Will this affect the accuracy potential? Or does my rifle need to be rechambered?