210 SMK's for 300WM , what am I missing?

canuckistaninia

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Minuteman
Feb 23, 2017
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So I'm starting to get in to the 300WM reloading game. I've scoured the net, and it looks like the 210Gr SMK gets very little love for the 300WM and I'm wondering why that is. No one seems to sayany negative about it, they just don't use it. It has a what looks like a good BC at .670 (G1). It's available in stores near me and Sierra typically has a fairly loyal following. For the life of me, I can't figure out why people don't seem interested in the bullet, but I'm trying to educate myself before I beat my heat against a wall. Is it related to the fact that it is a secant Ogive where most SMK's are tangent?
 
I would use Litz' Doppler-confirmed BC for the 210 SMK: 0.610. Compare that to the Litz BC of 0.691 for the 215 Berger Hybrid. The Berger's higher BC and shorter bearing surface length mean the SMK is at both a BC and velocity disadvantage.