My better-half's grandfather passed away over 2 years ago. My sister-in-law moved into his house and is slowly cleaning out the basement. My better-half inherited his Lee Enfield No4Mk1 and a Browning Auto-5 when he passed as she is the only one in her family with an interest in guns (and has her PAL). She says she can't remember in her life (25 years) ever seeing her grandfather go out hunting or shooting, but remarkably the guns were in great condition. Recently her sister came across an old homemade wooden box that Grandpa had made for his ammo. A couple questions about it. First, if the cases seem alright (no physical damage, bullet still tight in place, no box damage) is there any issue with shooting it? Directly after inheriting the guns, my lady had shoulder surgery so she hasn't even shot them yet. I thought it might be a neat memory for her if the first time she shot grandpa's gun using what was left of his ammo. I'm not interested in selling these by any means, just wondering if they are best used up (if safe) or put on a display shelf? Here are a couple pictures if anyone has additional info. I think the wife will enjoy learning some history of the items
Imperial .303 British

Manufacture Date...? 1952?

Ammunition was a lot cheaper back then! $6.25

Assorted 12 Gauge Brands/Types

Clear top you can see the shot through, Wax coated paper shells, Fancy 'New-Fangled' PLASTIC shells, Slugs

I like reading the info on the far-right box on the benefits of the 'new plastic hull' shotgun shells

Thanks for any insight you might have!
Imperial .303 British

Manufacture Date...? 1952?

Ammunition was a lot cheaper back then! $6.25

Assorted 12 Gauge Brands/Types

Clear top you can see the shot through, Wax coated paper shells, Fancy 'New-Fangled' PLASTIC shells, Slugs

I like reading the info on the far-right box on the benefits of the 'new plastic hull' shotgun shells

Thanks for any insight you might have!