Better Criticals

Better Criticals is a Perk available in Fallout, Fallout 2, Fallout 3 and Fallout Tactics.

Fallout, Fallout 2 and Fallout Tactics
The critical hits you cause in combat are more devastating. You gain a 20% bonus on the critical hit table, almost ensuring that more damage will be done. This does not affect the chance to cause a critical hit.

Fallout 3
With the Better Criticals perk, you gain a 50% damage bonus every time a critical hit is scored on an opponent.

TIPS:
 * This affects Sneak Attack criticals too - making it an ideal choice for characters with high sneak.
 * Combine with high Luck, high Repair skill (to keep your weapons in good condition), Finesse, and the Survival Guru perk to maximize the chance of a critical hit and the effectiveness of this perk.
 * Sneak Attack criticals with the Victory Rifle, Reservist's Rifle or even better, the Gauss Rifle are extremely devastating with this perk - not only will you deal alot of damage (very possibly killing the foe on the first strike), but also get a sure knock-down for quite a long period of time. This is very useful against tough enemies like Deathclaws or Yao Guai. For example, if you hit a Deathclaw with the Gauss Rifle in the head on normal difficulty,  it will knock off more than half its hp, and you have plenty of time to reload since the Deathclaw is knocked down.
 * Use fast-firing weapons to maximize the damage per second.
 * Jack is a very good weapon to use with this perk - see Characteristics under Jack.