Your least common caliber?

[xman59]

sure have enjoyed seeing some of the responses and nifty old rounds still getting it done!

[cva34]

.250 savage

That was what I was gona say....How about a 30rem..Pump from 40s/50s ..was my Unc rifle

[Bear Charge]

30-40 krag

[cantexduck]

.22 CHeetah

[db@100]

Has been mentioned above: .222 Rem
25-20 Winchester
I didn't see my "GO TO" for deer and elk... 7MM EXPRESS

[Paycheck]

100 rage

[88 Bound]

44 Mag
17 Hornet
204 Ruger

[piercebronkite]

.30-.378 Weatherby Magnum

What I like to call a boutique round.

[mpotts]

6HLS
.257ACK
.250ACK
6mmACK
6BR

[OleTomTalker]

12 gauge buckshot

Grew up in Mississippi running dogs for deer.