One is enough. – ~350% critical hit damage when zoomed in. Extremely high weapon zoom. Increased weapon accuracy, handling, and reload speed. Reduced base damage.
Usage & Description
The Monocle is a powerful critical hit weapon, but should only be used as a long-range weapon as its increased zoom can make it difficult to use in close-range combat and the reduced base damage makes it less effective with non-critical hits.
FL4K can make good use of this weapon for bursts of high damage with the Fade Away skill. Since every shot fired while it is active is a guaranteed critical hit, along with the Jakobs perk of a ricochet from a critical hit, this weapon can achieve massive single-shot damage in tight crowds of enemies.
Jakobs weapons get an inherent 10% bonus crit and all snipers get a bonus 20% crit, all of these along with the 10% crit damage that can be rolled on the gun equal ~500% crit bonus.