My Alberta LTATT condition states ''The holder must be a member in good standing of an approved shooting club OR, the guest of a member of an approved shooting club.''
So why would the LTATT be no good if you don't renew your membership and just want to shoot as a guest at another range?
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In Ontario its not an issue to buy a few restricteds without a range membership.
Perhaps if you suddenly bought 5 handguns and an AR in a day, without being a member of a range they might red flag that and say no. From what I understand, they might red flag that anyway and say no even if you have a range membership.