ok

code/modules/mob/living/simple_animal/hostile/megafauna/demonic_frost_miner.dm

@@ -108,7 +108,7 @@ Difficulty: Extremely Hard
 	icon_state = "ice_1"
 	damage = 20
 	armour_penetration = 100
-	speed = 10
+	pixels_per_second = TILES_TO_PIXELS(1)
 	homing_turn_speed = 30
 	damage_type = BURN
 
@@ -122,7 +122,7 @@ Difficulty: Extremely Hard
 	icon_state = "nuclear_particle"
 	damage = 5
 	armour_penetration = 100
-	speed = 4
+	pixels_per_second = TILES_TO_PIXELS(2.5)
 	damage_type = BRUTE
 
 /obj/item/projectile/ice_blast
@@ -130,7 +130,7 @@ Difficulty: Extremely Hard
 	icon_state = "ice_2"
 	damage = 15
 	armour_penetration = 100
-	speed = 4
+	pixels_per_second = TILES_TO_PIXELS(2.5)
 	damage_type = BRUTE
 
 /obj/item/projectile/ice_blast/on_hit(atom/target, blocked = FALSE)
@@ -184,7 +184,7 @@ Difficulty: Extremely Hard
 		if(!startloc || !endloc)
 			break
 		var/obj/item/projectile/ice_blast/P = new(startloc)
-		P.speed *= projectile_speed_multiplier
+		P.pixels_per_second *= projectile_speed_multiplier
 		P.preparePixelProjectile(endloc, startloc, null, angle + rand(-10, 10))
 		P.firer = firer
 		if(original)
@@ -200,7 +200,7 @@ Difficulty: Extremely Hard
 		if(!endloc)
 			break
 		var/obj/item/projectile/P = new /obj/item/projectile/snowball(startloc)
-		P.speed *= projectile_speed_multiplier
+		P.pixels_per_second *= projectile_speed_multiplier
 		P.preparePixelProjectile(endloc, startloc, null, rand(-spread, spread))
 		P.firer = src
 		if(target)
@@ -219,7 +219,7 @@ Difficulty: Extremely Hard
 			if(!endloc)
 				break
 			var/obj/item/projectile/P = new /obj/item/projectile/ice_blast(startloc)
-			P.speed *= projectile_speed_multiplier
+			P.pixels_per_second *= projectile_speed_multiplier
 			P.preparePixelProjectile(endloc, startloc, null, spread)
 			P.firer = src
 			if(target)

code/modules/projectiles/projectile.dm

@@ -337,6 +337,7 @@
 		return TRUE
 	return FALSE
 
+/// one move is a tile.
 /obj/item/projectile/proc/return_predicted_turf_after_moves(moves, forced_angle)		//I say predicted because there's no telling that the projectile won't change direction/location in flight.
 	if(!trajectory && isnull(forced_angle) && isnull(Angle))
 		return FALSE
@@ -344,7 +345,7 @@
 	if(!current)
 		var/turf/T = get_turf(src)
 		current = new(T.x, T.y, T.z, pixel_x, pixel_y, isnull(forced_angle)? Angle : forced_angle, pixel_increment_amount || SSprojectiles.global_pixel_increment_amount)
-	var/datum/point/vector/v = current.return_vector_after_increments(moves * SSprojectiles.global_iterations_per_move)
+	var/datum/point/vector/v = current.return_vector_after_increments(TILES_TO_PIXELS(moves) / (pixel_increment_amount || SSprojectiles.global_pixel_increment_amount))
 	return v.return_turf()
 
 /obj/item/projectile/proc/return_pathing_turfs_in_moves(moves, forced_angle)

code/modules/projectiles/projectile/beams.dm

@@ -74,7 +74,7 @@
 	flag = "energy"
 	hitsound = 'sound/weapons/tap.ogg'
 	eyeblur = 0
-	speed = 0.6
+	pixels_per_second = TILES_TO_PIXELS(16.667)
 	impact_effect_type = /obj/effect/temp_visual/impact_effect/blue_laser
 	light_color = LIGHT_COLOR_BLUE
 	tracer_type = /obj/effect/projectile/tracer/disabler

code/modules/projectiles/projectile/bullets/ferromagnetic.dm

@@ -3,6 +3,7 @@
 	damage = 20
 	armour_penetration = 20
 	light_range = 3
+	pixels_per_Second = TILES_TO_PIXELS(16.667)
 	speed = 0.6
 	range = 35
 	light_color = LIGHT_COLOR_RED
@@ -39,7 +40,7 @@
 	armour_penetration = 20
 	movement_type = FLYING | UNSTOPPABLE
 	range = 20
-	speed = 0.8
+	pixels_per_second = TILES_TO_PIXELS(12.5)
 	light_range = 4
 	light_color = LIGHT_COLOR_RED
 

code/modules/projectiles/projectile/bullets/sniper.dm

@@ -2,7 +2,7 @@
 
 /obj/item/projectile/bullet/p50
 	name =".50 bullet"
-	speed = 0.4
+	pixels_per_second = TILES_TO_PIXELS(25)
 	damage = 70
 	knockdown = 100
 	dismemberment = 50
@@ -43,5 +43,5 @@
 /obj/item/projectile/bullet/p50/penetrator/shuttle //Nukeop Shuttle Variety
 	icon_state = "gaussstrong"
 	damage = 25
-	speed = 0.3
+	pixels_per_second = TILES_TO_PIXELS(33.33)
 	range = 16

code/modules/projectiles/projectile/energy/nuclear_particle.dm

@@ -5,7 +5,7 @@
 	pass_flags = PASSTABLE | PASSGLASS | PASSGRILLE
 	flag = "rad"
 	irradiate = 5000
-	speed = 0.4
+	pixels_per_Second = TILES_TO_PIXELS(25)
 	hitsound = 'sound/weapons/emitter2.ogg'
 	impact_type = /obj/effect/projectile/impact/xray
 	var/static/list/particle_colors = list(

code/modules/projectiles/projectile/energy/stun.dm

@@ -10,7 +10,7 @@
 	jitter = 20
 	hitsound = 'sound/weapons/taserhit.ogg'
 	range = 14
-	speed = 0.6
+	pixels_per_second = TILES_TO_PIXELS(16.667)
 	tracer_type = /obj/effect/projectile/tracer/stun
 	muzzle_type = /obj/effect/projectile/muzzle/stun
 	impact_type = /obj/effect/projectile/impact/stun

code/modules/projectiles/projectile/magic.dm

@@ -435,7 +435,7 @@
 	damage = 15
 	damage_type = BURN
 	nodamage = 0
-	speed = 0.3
+	pixels_per_Second = TILES_TO_PIXELS(33.33)
 	flag = "magic"
 
 	var/tesla_power = 20000