Adjusts shotgun tube size (#4089)

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## About The Pull Request

Adjusts magazine size for tube-fed shotguns.
- Hellfire is the largest of the batch at 8 in the tube plus one in the
chamber
- Buckmaster has been nerfed to 6 in the tube
- Brimstone and Conflagration remain the same at 4 and 5 respectively

## Why It's Good For The Game

Hellfire really got left behind after the introduction of the
Buckmaster. This update makes the Hellfire a bit better than it ever
was, and makes the buckmaster slightly less best-in-class while still
being plenty potent.

## Changelog

:cl:
balance: Nerfed Buckmaster tube size, buffed Hellfire tube
/:cl:

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code/modules/cargo/packs/gun.dm

@@ -290,7 +290,7 @@
 
 /datum/supply_pack/gun/hellfire_shotgun
 	name = "Hellfire Shotgun Crate"
-	desc = "For when you need to deal with 8 hooligans. Contains a pump shotgun, with a 8-round capacity."
+	desc = "For when you need to deal with a riot's worth of hooligans. Contains a pump shotgun, with a 9-round capacity."
 	cost = 2000
 	contains = list(/obj/item/storage/guncase/hellfire)
 	crate_name = "shotgun crate"
@@ -306,7 +306,7 @@
 
 /datum/supply_pack/gun/buckmaster
 	name = "Buckmaster Shotgun Crate"
-	desc = "For when you need to deal with 8 hooligans and can't be arsed to pump. Contains a semi-auto shotgun with an 8 round tube."
+	desc = "For when you need to deal with 7 hooligans and can't be arsed to pump. Contains a semi-auto shotgun with a 7-round capacity."
 	contains = list(/obj/item/storage/guncase/buckmaster)
 	cost = 3000
 	crate_name = "shotgun crate"

code/modules/projectiles/boxes_magazines/internal/shotgun.dm

@@ -29,7 +29,7 @@
 /obj/item/ammo_box/magazine/internal/shot/riot
 	name = "riot shotgun internal magazine"
 	ammo_type = /obj/item/ammo_casing/shotgun/buckshot
-	max_ammo = 7
+	max_ammo = 8
 
 /obj/item/ammo_box/magazine/internal/shot/bounty
 	name = "triple-barrel shotgun internal magazine"

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

@@ -484,7 +484,7 @@ EMPTY_GUN_HELPER(shotgun/brimstone)
 
 /obj/item/gun/ballistic/shotgun/hellfire
 	name = "HP Hellfire"
-	desc = "A hefty pump-action riot shotgun with a seven-round tube, manufactured by Hunter's Pride. Especially popular among the Frontier's police forces. Chambered in 12g."
+	desc = "A hefty pump-action riot shotgun with an eight-round tube, manufactured by Hunter's Pride. Especially popular among the Frontier's police forces. Chambered in 12g."
 	icon = 'icons/obj/guns/manufacturer/hunterspride/48x32.dmi'
 	lefthand_file = 'icons/obj/guns/manufacturer/hunterspride/lefthand.dmi'
 	righthand_file = 'icons/obj/guns/manufacturer/hunterspride/righthand.dmi'
@@ -505,7 +505,7 @@ EMPTY_GUN_HELPER(shotgun/brimstone)
 	. = ..()
 	if(.)
 		var/obj/item/ammo_box/magazine/internal/tube = magazine
-		tube.max_ammo = 5 //this makes the gun so much worse
+		tube.max_ammo = 5 //this makes it so much worse
 
 		weapon_weight = WEAPON_MEDIUM
 		wield_slowdown = wield_slowdown-0.1

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

@@ -339,7 +339,7 @@ EMPTY_GUN_HELPER(automatic/m15)
 /obj/item/ammo_box/magazine/internal/shot/buckmaster
 	name = "Buckmaster internal magazine"
 	ammo_type = /obj/item/ammo_casing/shotgun/buckshot
-	max_ammo = 8
+	max_ammo = 6
 
 EMPTY_GUN_HELPER(shotgun/automatic/m11)