What harm? - It might place a heavy burden on the executor of your will.
Unless you have down-sized prior to your "departure", the how and where of liquidating your firearms AND ASSOCIATED HUNTING AND RELOADING/CASTING EQUIPMENT and LIBRARY will be quite the challenge. Gifting specific firearms/equipment/books should also be considered.
To assist/guide your executor, and REALIZE the best $return$ for your heirs, you should create and leave detailed instructions how/where/when to sell off AND/OR GIFT your worldly goods - and deposit several copies thereof in different locations.
Just my $0.02 - YMMV.
