Petit Pussiance

The Savage 93F in .22 WMR does 3d-1 pi-.

Raw roll of 2-17, with an average of 9.

Ball Ammo Against:

Vitals; 6-51, average of 27.
Skull; 0-60, average of 28.
Eye; 8-68, average of 36.
Torso, Face, Neck and Groin; 1-8, average of 4.
Arm and Leg; 1-8, average of 4 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 1-8, average of 4 but damage over 1/3HP is lost and limb is crippled.

Hollow Point Ammo (and most .22 WMR is a hollow point for GURPS purposes) becomes 3d-1(0.5) pi giving:

Vitals; 6-51, average of 27.
Skull; 0-52, average of 20.
Eye; 8-68, average of 36.
Torso, Face, Neck and Groin; 2-17, average of 9.
Arm and Leg; 2-17, average of 9 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 2-17, average of 9 but damage over 1/3HP is lost and limb is crippled.

Remember our HP 7 Coyote from previous examples?

7 or more gets a consciousness roll and 14 gets the first death roll, 42 is instant death without a roll.

I've often thought about survival adventurer type characters who carry a light rifle with light ammunition for most things and an assault rifle for more serious work.  .22 WMR appears to be stout enough to get most game.

My original idea was a Remington 341A which does 1d+2 pi- with common ammo.  Much less effective.

Raw roll of 3-8, with an average of 5.

Ball Ammo Against:

Vitals; 9-24, average of 15.
Skull; 4-24, average of 12.
Eye; 12-32, average of 20.
Torso, Face, Neck and Groin; 1-4, average of 2.
Arm and Leg; 1-4, average of 2 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 1-4, average of 2 but damage over 1/3HP is lost and limb is crippled.

Hollow Point Ammo becomes 1d+2(0.5) pi giving:

Vitals; 9-24, average of 15.
Skull; 0-16, average of 4.
Eye; 12-32, average of 20.
Torso, Face, Neck and Groin; 3-8, average of 5.
Arm and Leg; 3-8, average of 5 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 3-8, average of 5 but damage over 1/3HP is lost and limb is crippled.

Just to give some perspective, 5.56x45mm NATO from a 14.5 or 16 inch long barrel is 4d+2 pi.

Raw roll of 6-26, with an average of 16.

Ball Ammo Against:

Vitals; 18-78, average of 48.
Skull; 16-96, average of 56.
Eye; 24-104, average of 64.
Torso, Face, Neck and Groin; 6-26, average of 16.
Arm and Leg; 6-26, average of 16 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 6-26, average of 16 but damage over 1/3HP is lost and limb is crippled.

Hollow Point Ammo becomes 4d+2(0.5) pi+ giving:

Vitals; 18-78, average of 48.
Skull; 8-84, average of 48.
Eye; 24-104, average of 64.
Torso, Face, Neck and Groin; 9-39, average of 24.
Arm and Leg; 9-39, average of 24 but damage over 1/2HP is lost and limb is crippled.
Hands and Feet; 9-39, average of 24 but damage over 1/3HP is lost and limb is crippled.

The main reason for looking at the lighter rounds is weight.  100 rounds each of .22 LR, .22 WMR and 5.56 NATO come in at 0.77 lb., 0.79 lb., and 2.7 lb. respectively.

The downside of the scoped Savage 93F is that it's 6.3 lb. with a mere 5 rounds loaded; 6.4 with 10 rounds.  That's 237 rounds of 5.56...  More than a basic load.

It would become worth the effort is military rounds are extremely expensive in the game setting and rimfire rounds aren't.