Another vote for the 10/22.

Is there a range around that has .22s available to rent so you can try them out and compare on a one-by-one basis? I've never heard of a range that rented "mere" .22s, but that's fine I've never heard of a lot of things.

$0.02
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(posting this as someone that has unintentionally done a bunch of stupid stuff in the past and will again...)