Grecian Formula

This is an M1951 web gear compatible Greek M1 Garand ammo pouch.

It is 2 lb. 11.5 oz. with four 8-round en bloc clips and 8.4 oz. empty.

There are M1951 style grenade loop and retainers (as shown with my fetching dummy grenades).

The clips need to be inserted as shown!  If they are both nose down or nose up, it's very difficult to get them out with the pouch loose in your hand, and would be impossible with it attached to your web gear.

 

If you have the outside clip nose up, the back of the inside clip snags on the hem of the mouth.

A decent means of carrying 32 rounds for your Garand and, I assume two pouches were given each soldier for a total of 72 shots.  Less than the 104 carried in the WW2 pouches, but all of them are more readily accessible in the Greek method.  Three pouches and a canteen would balance OK to tie the capacity of the old 1923 belt.

By way of comparison the M1956 Universal Small Arms Ammunition Pouch is 12.5 oz. empty and 2 lb. 15.7 oz. loaded with two 20-round FAL magazines.  With a basic load of two pouches and one mag in the gun we have 100 rounds on tap for just a 1/4 lb. more on your belt and a pound more in your arms. 

Loading a field dressing and four 20-round M16 magazines loaded with 28 rounds each is 3 lb. 6.6 oz.  Two pouches and 18 more in the M16A1 gives 162 rounds.  For about 3 lb. more on your belt and almost the same less in your hands.

A Soviet pigskin ammo pouch for a Mosin Nagant carries 30 rounds on 5-round clips for 2 lb. 4.4 oz. (6.6 oz. empty) and you get a much lower rate of fire for not a lot of weight savings.