It makes no sense to me to ask about "best for target shooting" without saying what kind of "target" shooting.
Plinking at cans? NRA Bullseye? PPC? IDPA? Steel challenge? USPSA?

If you have fixed sights, pick the weight that shoots to point of aim and blast away at informal paper targets or tin cans.

For formal sanctioned competition, the rules of the sport often pick the ammo for you, like when making major power for USPSA (IPSC).

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Science plus Art