I've got a 2B at 24" on a M70 7mm rem mag, I like it a lot and wouldn't want it any heavier. Keep in mind that a Bartlein 2B is the same as most everyone else's #3, while their #3 is the same as most other's #4's. I had a #4 Hart on a 7mm stw once, it was too heavy for a carry rifle for me.

This is it, it's in a Mcmillan hunter's edge stock. The aspect makes it look a little skinnier in the picture than in real life:

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