Makes the Cobra not just a better Mongrel (and fixes a typo) (shiptes…

…t-ss13#3437)

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## About The Pull Request
Reduces the size of the C-20r and Cobra-20's magazines to 24 rounds,
identical to the Mongrel. This also means you get two clean reloads out
of a box of .45 ammunition instead of having one mag and _almost_ a
second mag. Also, fixed the "civillian" typo in the cargo listings for
scarborough guns.

## Why It's Good For The Game

not getting two reloads out of a box is just plain irritating and also
the cobra shouldn't just be a mongrel but better

## Changelog

:cl:
balance: Reduced Cobra-20 magazine size to 24 rounds
fix: removed a typo from Scarborough cargo catalog entries
/:cl:

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---------

Co-authored-by: FalloutFalcon <[email protected]>

code/modules/cargo/packs/gun.dm

@@ -31,7 +31,7 @@
 
 /datum/supply_pack/gun/ringneck
 	name = "Ringneck Pistol Crate"
-	desc = "Contains a civillian variant of the Ringneck pistol, produced by Scarborough Arms and chambered in 10mm."
+	desc = "Contains a civilian variant of the Ringneck pistol, produced by Scarborough Arms and chambered in 10mm."
 	cost = 1000
 	contains = list(/obj/item/storage/pistolcase/ringneck)
 	faction = FACTION_SYNDICATE
@@ -66,7 +66,7 @@
 
 /datum/supply_pack/gun/viperrevolver
 	name = "Viper-23 Revolver Crate"
-	desc = "Contains a a civillian variant of the Viper revolver, chambered in .357 magnum."
+	desc = "Contains a a civilian variant of the Viper revolver, chambered in .357 magnum."
 	cost = 2500
 	contains = list(/obj/item/storage/pistolcase/viper)
 
@@ -198,14 +198,14 @@
 
 /datum/supply_pack/gun/boomslang90
 	name = "Boomslang-90 Rifle Crate"
-	desc = "Contains a civillian variant of the Boomslang Sniper rifle- modified with a 2x scope, rather than a sniper scope. Chambered in the powerful 6.5x57mm CLIP."
+	desc = "Contains a civilian variant of the Boomslang Sniper rifle- modified with a 2x scope, rather than a sniper scope. Chambered in the powerful 6.5x57mm CLIP."
 	cost = 5000
 	contains = list(/obj/item/storage/guncase/boomslang)
 	crate_name = "rifle crate"
 
 /datum/supply_pack/gun/cobra20
 	name = "Cobra-20 SMG Crate"
-	desc = "Contains a civillian variant of the Cobra SMG, manufactured by Scaraborough Arms and chambered in .45"
+	desc = "Contains a civilian variant of the Cobra SMG, manufactured by Scaraborough Arms and chambered in .45"
 	cost = 3000
 	contains = list(/obj/item/storage/guncase/cobra)
 	crate_name = "SMG crate"

code/modules/projectiles/guns/manufacturer/scarborough/ballistics.dm

@@ -421,12 +421,12 @@ EMPTY_GUN_HELPER(automatic/smg/cobra/indie)
 
 /obj/item/ammo_box/magazine/m45_cobra
 	name = "Cobra magazine (.45)"
-	desc = "A 28-round magazine for the Cobra submachine gun. These rounds do moderate damage, but struggle against armor."
-	icon_state = "cobra_mag-28"
+	desc = "A 24-round magazine for the Cobra submachine gun. These rounds do moderate damage, but struggle against armor."
+	icon_state = "cobra_mag-24"
 	base_icon_state = "cobra_mag"
 	ammo_type = /obj/item/ammo_casing/c45
 	caliber = ".45"
-	max_ammo = 28
+	max_ammo = 24
 
 /obj/item/ammo_box/magazine/m45_cobra/update_icon_state()
 	. = ..()