Multishot

Multishot describes the number of pellets (bullets, projectiles, bolts, etc.) the weapon will fire per attack. While multishot is a feature normally encountered mainly on shotguns, it can be added to any weapon through mods, effectively allowing you to fire more bullets without consuming extra ammunition. If the pellet count results in a fraction, the fractional part will be a chance to fire one more bullet. This option might be turned off in certain weapons.

Because every pellet has a chance to proc, increasing multishot will effectively increase the chance of obtaining a status effect.

Calculating Multishot

Total Pellets = Weapon Pellet Count × (1 + Multishot Modifier)

• Weapon Pellet Count refers to the base amount of pellets fired per weapon attack.
• Multishot Modifier refers to the total value of all related mods added together.

For example, a Hek with 120% multishot will have the pellet count of 15.4. This means it will fire 15 pellets per shot with a 40% chance of firing a 16^th pellet. Meanwhile, a Lex with 180% multishot will have a pellet count of 2.8. It will therefore fire 2 bullets with an 80% chance of a third bullet on that shot.

Since multishot only changes the weapon's pellet count, all additional pellets will behave identically to the originals, including mod effects, spread, elemental damage, etc. If the weapon has no spread at all, the additional bullets will overlap the original. This can be verified by using a weapon such as the Dera with and without Heavy Caliber to increase spread.

Note that the in-game UI will show the sum of all the pellets' damage, so actual damage may be lower on weapons with large spreads where some pellets may miss entirely. 

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Pellet Counts

Shotguns

Multishot percent	0%	20%	40%	60%	80%	100%	120%
Sobek, Tigris	4	4.8	5.6	6.4	7.2	8	8.8
Sweeper	6	7.2	8.4	9.6	10.8	12	13.2
Hek, Phage	7	8.4	9.8	11.2	12.6	14	15.4
Boar	8	9.6	11.2	12.8	14.4	16	17.6
Boar Prime	9	10.8	12.6	14.4	16.2	18	19.8
Strun, Strun Wraith, Drakgoon	10	12	14	16	18	20	22
Kohm1	12	14.4	16.8	19.2	21.6	24	26.6

The table below refers to Scattered Justice, a mod that also gives multishot but can only be installed on the Hek.

Multishot percent	0%	50%	100%	150%	200%	320%2
Hek	7	10.5	14	17.5	21	29.4

^{1) Due to the Kohm's unique firing mechanics this entry only refers to fully-spooled shots, for simplicity's sake. 2) This value refers to a combination of Scattered Justice and Hell's Chamber, both fully ranked.}

Pistols

Multishot percent	0%	10%	20%	30%	40%	50%	60%	70%	80%	90%
AkJagara	2	2.2	2.4	2.6	2.8	3	3.2	3.4	3.6	3.8
Angstrum	3-7	3.3-7.7	3.6-8.4	3.9-9.1	4.2-9.8	4.5-10.5	4.8-11.2	5.1-11.9	5.4-12.6	5.7-13.3
Bronco, Bronco Prime, Akbronco, Detron, Mara Detron	7	7.7	8.4	9.1	9.8	10.5	11.2	11.9	12.6	13.3
Brakk	10	11	12	13	14	15	16	17	18	19
Pyrana	12	13.2	14.4	15.6	16.8	18	19.2	20.4	21.6	22.8
Multishot percent	0	100%	110%	120%	130%	140%	150%	160%	170%	180%
AkJagara	2	4	4.2	4.4	4.6	4.8	5	5.2	5.4	5.6
Angstrum	3-7	6-14	6.3-14.7	6.6-15.4	6.9-16.1	7.2-16.8	7.5-17.5	7.8-18.2	8.1-18.9	8.4-19.6
Bronco, Bronco Prime, Akbronco, Detron, Mara Detron	7	14	14.7	15.4	16.1	16.8	17.5	18.2	18.9	19.6
Brakk	10	20	21	22	23	24	25	26	27	28
Pyrana	12	24	25.2	26.4	27.6	28.8	30	31.2	32.4	33.6

Fire Accuracy

For rifles and single shot pistols, fire accuracy is calculated using the following formula:

Accuracy = 100 × Shots Hit ÷ Unmodified Pellet Count

Because of this, is possible to have a fire accuracy higher than 100% with a rifle or single shot pistol using a multishot mod. For example, if you hit 468 shots and fired 342 shots using a rifle during a mission:

Accuracy = 100 × 468 ÷ 342

Therefore, we can conclude the following:

Accuracy = 136.84%

Therefore, rifles can reach 190% accuracy, shotguns can reach 220%, and pistols can reach 280% before considering how multiple targets can be struck by each attack via Punch Through.