"...keep my ammo of similar weight..." Most bullet makers make match and varmint bullets of the same weight. Hornady, for example, makes a 52 grain A-Max and a HPBT. 55 grain A-Max and an SP. Match bullets are good for small game and fur hunting coyotes. Like Scorch says, neither will know or care what bullet kills it.
No varmint bullet explodes. They expand rapidly.
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