Is there a tool out there to determine bullet seating depth? I always hear guys say just off the lands or touching the lands or .02 off the lands. My question is how do you get the chamber dimensions to know if your .02 off the lands? I think its called the ogive of the bullet (where it comes into contact with the lands) that determines the over all length but not sure how to get the measurement of the ogive accurately. I assume there are tools to do all this but not sure. any help??????