Part of the fun of starting to reload is trying to figure out why things are the way they are. According to my measurements using the hornaday oal gauge and bullet comparator the shortest jump to the lands I can achieve with a barnes 130 grain ttsx while still fitting in the magazine is .010. With a 130 grain nosler accubond the shortest jump to the lands while still fitting the magazine is 0.075. I decided to take some measurements on each bullet and in an attempt to understand the differences between the two. Bullet length (ttsx- 1.324, acc – 1.241) Comparative Bullet length using hornaday bullet comparator (ttsx – 1.785, acc – 1.702) The actual bullet comparator that attaches to the calipers is 1.002. By subtracting that number from the comparative bullet length I figured that would give me the distance from the base of the bullet to the ogive. (ttsx-0.783, acc- 0.700) By subtracting the length found above from the bullet length I figured I would get the distance from the tip to the ogive. (ttsx-.541, acc- .541) I am thinking I did something wrong or had a misconception along the way. It seems to me that if both bullets actually have the same distance from the ogive to the tip they should be able to achieve the same jump to the lands while just fitting the magazine.