.280AI I'm suspecting. Based on the OP's moniker.
I'm NOT a fan of Mono-metals unless ranges are going to be short most likely. However, I've not used the AB on anything so can't vouch for it really either.
I'd choose one of the two heavier ones, most likely the AB.
“You never need fear a man, no matter what his size. When danger threatens, call on me, and I will equalize.”
Samuel Colt.
�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson
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