Merle1:
Those are 7.62 Enfield magazines. The rifles are; top to bottom Long Branch 1/3 DCRA 7.62 NATO, 2nd from top, Parker Hale T-4 target rifle7.62 NATO, A.J. Parker "Excell" 7.62 NATO, and L39A1 military target rifle, 7.62 NATO. Contrary to what is posted all around the internet, these 7.62 NATO conversions can really shoot.
That's what I thought - thanks.