Re: 175 SMK Ogive ???
Ditto what Barretshooter said.
Best- and cheapest- tool I ever bought was the bullet comparator, and OAL gauge.
Measure the ogive length with the bullet touching the lands, deduct .01 (give or take), and go shooting.
Course that .01 is subject to experimentation, but it ends up being pretty good for me most of the time.