Plano 131250 1312 Waterproof Ammo Can - Heavy Duty Storage Box for Ammunition, Tools & Outdoor Gear - Ideal for Hunting, Shooting Range & Camping Supplies

I got two as a gift from my brother who "knows his stuff", and immediately bought two more (so I can have more organization options and not mix sizes or calibers :D ). USPS screwed up the delivery and these folks replied within hours and fixed it. Great product, great seller! Oh, what most of you are asking - the hole for the lock is both plenty big to fit a large lock with room to spare, but the whole area *around it* is made so the lock can be turned and swiveled with ease. These really are top shelf.