Experience with non-leather ammo slide pouches?

[Luminous Ham]

Seems I can't edit original post, so just to clarify: I meant WITHOUT lid/flap.

 

[Luvthunt]

I used the Uncle Mikes for many years. Used one for my 458 Lott (all 375 brass fit) and have used one for my 416 Rigby with every other loop. They are quite cheap and last me several years for belt and stock.
Would use again.

 

[R eight]

Here is what I use. There is no Velcro to make any noise and the shells are held in by plastic straps. It says that it will hold up to 300 Win mag but your 416 is just a step up from there, I'm not sure that you'll find just one that will fit in the range that you want.

MidwayUSA 10-Round Belt Slide Folding Rifle Ammo Carrier Black

The MidwayUSA Rifle Ammo Carrier is a must-have accessory for every hunter and shooter. This ammo carrier is made from abrasion resistant fabric to...

www.midwayusa.com

I don’t understand why anyone would be concerned about any noise from Velcro. I’ve usually emptied my magazine before I reach for more ammunition.

 

[Sika98k]

@Luminous Ham Take a look at eGun.de. patronen etui is what you are looking for.
med venlig hilsen fra Irland.