Is this safe suitable for storing rifles as well as shotguns?
Alfie
Yes the unit is also designed to store rifles (without scopes). However if you do wish to store rifles with scopes I can recommend the JFC 4/6 Rifle Safe.
Would this be suitable for mounting horizontally in an loft space anchored to the joists?
Ben, Cheltenham
This unit is not suitable to base fix horizontally to a solid floor. If you require a gun cabinet that can then I would recommend the Brattonsound Auto 2 Gun - 32