OAL to ogive for bullets

[tiny68]

Got a new Shilen 6BR barrel,0.100 freebore) for my Savage target action and I did some measurements of various bullets to the lands. Might be useful to someone to compare a different bullet. All barrels are headspaced slightly different but if you know where the lands are for one these bullets in your gun, you can easily add or subtract the correction factor. Key is that it gives the distance to the ogive for each relative bullet.

These measurement were made with a split neck case that held the bullet firmly. The bullets were barely seat in the neck and the case was pushed forward with a bore guide until if bottomed out in the chamber. A cleaning rod was used to carefully push the case/bullet back until it could be removed. Measurements below are the O.A.L. to the ogive to reach the lands in my barrel measured with a StonyPoint COAL gauge. Each number represents the average of 5 bullets, each bullet was measured twice.

95 FB BIB - 1.813'
95 Berger VLD - 1.7915'
107 SMK - 1.811'
95 SMK - 1.810'
90 Berger BT - 1.808'
80 Berger FB - 1.802'
105 AMax - 1.794'

Good to know the 107 SMK, 95 SMK, and the 95 BIB all measure so close to the lands.

Hope this helps someone, tiny

 

[Thorbird]

Hey thanks Tiny. That is a good reference for those who are contemplating the .100 freebore. Post how the shilen shoots. The freebore in my Savage f-class is longer but it gives me and idea if I want to try those other bullets of roughly how they will sit in my chamber.