I wouldn’t take what Sierra say as gospel, more of a “let’s cover our arses” type recommendation. I loved the Sierra 1345 in my .223, mushrooms beautifully at .222/.223 velocities in deer, and yet is marketed as part of their varminter range.
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Cheers @GWH
Ear Burrowing Rat Gun
243, superb calibre !
Suposedly, you need to be so close that you can put the barrel in the ear of your target.