Between the 169gr SMK and 168gr TMK, about $0.10/bullet. The 175gr is even more expensive.Damn i guess i just missed that? It's hard to keep up with sierra's releases because they'll literally redesign a bullet under the same moniker and suddenly the BC jumps because they've changed the ogive. But yeah the 168gr TMK kind of makes the 169gr SMK moot. I suppose the SMK is a little cheaper.
Personally, if I was using them in a match, yes I would go for the TMKs.