For Australia. I have not used all of them or some of them a lot. Most used marked with an asterix.

My most common choices:

.223 *
.30-06 *
.308 *
6.5x55
.22 RF *
.22 RF Mag *
12 bore *
.410 *

Not as commonly used now.

.222 *
.303 *
.375 H&H Mag *

Relatively obscure

7x65R
.45/70
.58 BP ML

Obscure

.222 Rimmed
.297/250
6.5x53R
6.5x54
6.5x65
8X56
8x68S *
8 mm Hungarian (probably)
9.3x74R *
9.5X57
.404 *
.577/450
.450 No.2 NE *
.500 BPE (probably)
10-bore