Makes .38 speedloaders cheaper. (#3159)

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## About The Pull Request
Makes .38 speedloaders cheaper 350 - 250

## Why It's Good For The Game

makes speedloaders less expensive than the gun

## Changelog

:cl:

balance: .38 speedloaders are cheaper
/:cl:

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code/modules/cargo/packs/ammo.dm

@@ -28,7 +28,7 @@
 	name = ".38 Speedloader Crate"
 	desc = "Contains a .38 speedloader for revolvers, containing six rounds."
 	contains = list(/obj/item/ammo_box/c38)
-	cost = 350
+	cost = 250
 
 /datum/supply_pack/ammo/m10mm_mag
 	name = "10mm Stechkin Magazine Crate"