10-13-2011, 03:43 AM
Every bullet has different dimensions, so that is not the case. You might want to check into a comparator if you want to load off of the lands. Doing OAL is decent, but inaccurate. Get a Hornady Comparator and it measures the length of the round off of the ogive. A ton more accurate and it will eliminate that problem. You can also play around and see that every brand of bullet is different, and every weight of bullet is different.