Some RF rounds

[CINDERS]

Dug a couple out for viewing and ID'ing from those that may know of interest Rt to Left the rather small round, 4th a rimless rim fire!, a Flobert round! the.22 RF is on the left as a scale.
Some of my .22 RF rounds are copper cased which I find rather unusual also I have pictured the rimless H/S and the rather diminutive rounds H/S as well. TIA

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