I think it also depends on what you're prepared to spend on ammo!!
I love to shoot targets with an AR-15, but that .223 ammo can get pretty expensive..... I also enjoy the .22 rifle, that thing you can shoot all day for next to nothing, and it's fun! That being said however, a larger caliber is more challenging, so I suppose it depends on what you're looking for in target shooting!
But, I do agree with others who've said you need to practice with your carry, or bedside gun. That is definitely where it counts...............
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