Well, if the 22BR is your choice, go for it. It looks to have about the same velocity as the 224 Weatherby or the 225 Winchester, so it should be a fine varmint caliber. And it appears that Lapua and Norma make 6mmBR cases, so you have something to work with. That's a lot of work though, and if I wanted something different I'd probably lean toward a 224TTH, which is more of a hunting purposed cartridge. Anyway...sounds like fun, and I can understand the wanting 'something not a 22-250'. My personal 'not 22-250' is my 220 Swift.
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