![Image](http://i1306.photobucket.com/albums/s572/RodDavies/IMG_0180_zpsbkjpiwfl.jpg)
Berger 180gn Hybrid, Sierra 183gn Berger 195gn stood on their nose to show ogive length difference.
![Image](http://i1306.photobucket.com/albums/s572/RodDavies/IMG_0181_zpskktjsbex.jpg)
I took some basic measurements of these 3 bullets and this is how they compare.
Berger 180gn Hybrid Sierra 183gn Berger 195gn
OAL 1.515" 1.600" (+.085") 1.645" (+.135")
BTO .660" .685" (+.025) .775" (+.115")
BS .480" .475" (-.005") .590" (+.110")
BT .180" .210" (+.030") .185" (+.005")
Ogive .855" .915" (+.060") .870" (+.015")
Dia .2846" .2836" .2839"
These bearing surface measurements are only comparative, taken with 2x bullet comparators, no high tech bearingsurfaceometers used.
I only did basic checks for uniformity across 20 bullets of each type, so not statistically significant.
From the brief checks I did, the 180 hybrids varied around .006" in BSL, the Sierras around .002" and 195s .008"
These measurements are for interest sake only and not exact, rounded off a thou or two.