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Freebore confusion

Helidriver

Sergeant
Full Member
Minuteman
Supporter
Dec 6, 2009
390
113
Surprise, AZ
Well it's been years but I'm going to roll my own for a range trip tomorrow with my Savage 10PC. This rifle has only seen factory ammo to this point. I just got done using the Hornady OAL gauge with a Hornady comparator. Here's my measurments using 175 SMKs.

- 2.239" out of 5 tries...All the same..cool

That leaves me with a COAL of 2.806 touching the lands. Sierra list a COAL for the 175's of 2.800. That leaves me with .006 freebore. Is my math correct? I don't have my notes with me for my other rifles but that seems like a very tight chamber.

Going to load with Varget, RE15 or 4064, CCI BR and Lapua brass. I'm not sure which powder yet but I have them all here so those are my choices.

Comments or suggestions?