As far as skills development. I find that well aimed shots on small targets with a pellet gun or a 22 rimfire do me as much good as center fire rounds do. I like to warm up with my rimfire and then shoot 5 to 20 shots with my hunting gun. I also recommend dry firing with your hunting gun concentrating on sight alignment, trigger squeeze and follow through. Frequent small sessions will help you more than the occasional marathon.
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"Therefore go and make disciples of all nations,... "
Matthew 28:19

Handgun hunter since 1979 - haven't used a rifle since!
HHI member #992, NRA, SCI.