diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index c3137e29f..90209f9c6 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -2504,7 +2504,7 @@ static void greenslime(int i)
 
 		s->z = ps[p].posz + ps[p].pyoff - t[2] + (8 << 8);
 
-		s->z += (100 - ps[p].gethoriz()) << 4;
+		s->z += (IntToFixed(100) - ps[p].getq16horiz()) >> 12;
 
 		if (t[2] > 512)
 			t[2] -= 128;
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 089870db4..33e5bc127 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -166,7 +166,7 @@ void shoot_d(int i, int atwith)
 			}
 			else
 			{
-				zvel = 98 * (100 - ps[p].gethorizsum());
+				zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (98. / 65536.));
 				sx += sintable[(sa + 860) & 0x7FF] / 448;
 				sy += sintable[(sa + 348) & 0x7FF] / 448;
 				sz += (3 << 8);
@@ -224,7 +224,7 @@ void shoot_d(int i, int atwith)
 			}
 			else
 			{
-				zvel = (int)(100 - ps[p].gethorizsum()) * 81;
+				zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (81. / 65536.));
 				if (sprite[ps[p].i].xvel != 0)
 					vel = (int)((((512 - (1024
 						- abs(abs(getangle(sx - ps[p].oposx, sy - ps[p].oposy) - sa) - 1024)))
@@ -292,7 +292,7 @@ void shoot_d(int i, int atwith)
 		{
 			if (p >= 0)
 			{
-				zvel = (100 - ps[p].gethorizsum()) << 5;
+				zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				sz += (6 << 8);
 				sa += 15;
 			}
@@ -464,14 +464,14 @@ void shoot_d(int i, int atwith)
 				if (j == -1)
 				{
 					// no target
-					zvel = (100 - ps[p].gethorizsum()) << 5;
+					zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				}
 				zvel += (zRange / 2) - (krand() & (zRange - 1));
 			}
 			else if (j == -1 || atwith != SHOTSPARK1)
 			{
 				sa += 16 - (krand() & 31);
-				zvel = (100 - ps[p].gethorizsum()) << 5;
+				zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				zvel += 128 - (krand() & 255);
 			}
 
@@ -681,7 +681,7 @@ void shoot_d(int i, int atwith)
 				sa = getangle(sprite[j].x - sx, sprite[j].y - sy);
 			}
 			else
-				zvel = (100 - ps[p].gethorizsum()) * 98;
+				zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (98. / 65536.));
 		}
 		else
 		{
@@ -769,7 +769,7 @@ void shoot_d(int i, int atwith)
 				if (sprite[j].picnum != RECON)
 					sa = getangle(sprite[j].x - sx, sprite[j].y - sy);
 			}
-			else zvel = (100 - ps[p].gethorizsum()) * 81;
+			else zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (81. / 65536.));
 			if (atwith == RPG)
 				S_PlayActorSound(RPG_SHOOT, i);
 
@@ -914,7 +914,7 @@ void shoot_d(int i, int atwith)
 	case HANDHOLDINGLASER:
 
 		if (p >= 0)
-			zvel = (100 - ps[p].gethorizsum()) * 32;
+			zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 		else zvel = 0;
 
 		hitscan(sx, sy, sz - ps[p].pyoff, sect,
@@ -1015,7 +1015,7 @@ void shoot_d(int i, int atwith)
 			else
 			{
 				sa += 16 - (krand() & 31);
-				zvel = (100 - ps[p].gethorizsum()) << 5;
+				zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				zvel += 128 - (krand() & 255);
 			}
 
@@ -1090,7 +1090,7 @@ void shoot_d(int i, int atwith)
 				zvel = ((sprite[j].z - sz - dal - (4 << 8)) * 768) / (ldist(&sprite[ps[p].i], &sprite[j]));
 				sa = getangle(sprite[j].x - sx, sprite[j].y - sy);
 			}
-			else zvel = (100 - ps[p].gethorizsum()) * 98;
+			else zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (98. / 65536.));
 		}
 		else if (s->statnum != 3)
 		{
@@ -1940,7 +1940,7 @@ int operateTripbomb(int snum)
 
 	hitscan(p->posx, p->posy, p->posz,
 		p->cursectnum, sintable[(p->getang() + 512) & 2047],
-		sintable[p->getang() & 2047], (100 - p->gethorizsum()) * 32,
+		sintable[p->getang() & 2047], (IntToFixed(100) - p->getq16horizsum()) >> 11,
 		&sect, &hw, &hitsp, &sx, &sy, &sz, CLIPMASK1);
 
 	if (sect < 0 || hitsp >= 0)
@@ -2122,12 +2122,12 @@ static void operateweapon(int snum, ESyncBits actions, int psect)
 			if (p->on_ground && (actions & SB_CROUCH))
 			{
 				k = 15;
-				i = ((p->gethorizsum() - 100) * 20);
+				i = xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 			else
 			{
 				k = 140;
-				i = -512 - ((p->gethorizsum() - 100) * 20);
+				i = -512 - xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 
 			j = EGS(p->cursectnum,
diff --git a/source/games/duke/src/player_r.cpp b/source/games/duke/src/player_r.cpp
index 6ef71f6e4..624e28509 100644
--- a/source/games/duke/src/player_r.cpp
+++ b/source/games/duke/src/player_r.cpp
@@ -154,7 +154,7 @@ void shoot_r(int i, int atwith)
 		{
 			if (p >= 0)
 			{
-				zvel = (100 - ps[p].gethorizsum()) << 5;
+				zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				sz += (6 << 8);
 				sa += 15;
 			}
@@ -333,7 +333,7 @@ void shoot_r(int i, int atwith)
 				if (j == -1)
 				{
 					sa += 16 - (krand() & 31);
-					zvel = (100 - ps[p].gethorizsum()) << 5;
+					zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 					zvel += 128 - (krand() & 255);
 				}
 			}
@@ -343,7 +343,7 @@ void shoot_r(int i, int atwith)
 					sa += 64 - (krand() & 127);
 				else
 					sa += 16 - (krand() & 31);
-				if (j == -1) zvel = (100 - ps[p].gethorizsum()) << 5;
+				if (j == -1) zvel = (IntToFixed(100) - ps[p].getq16horizsum()) >> 11;
 				zvel += 128 - (krand() & 255);
 			}
 			sz -= (2 << 8);
@@ -602,7 +602,7 @@ void shoot_r(int i, int atwith)
 				sa = getangle(sprite[j].x - sx, sprite[j].y - sy);
 			}
 			else
-				zvel = (100 - ps[p].gethorizsum()) * 98;
+				zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (98. / 65536.));
 		}
 		else
 		{
@@ -693,7 +693,7 @@ void shoot_r(int i, int atwith)
 			{
 				sx += sintable[(s->ang + 512 + 160) & 2047] >> 7;
 				sy += sintable[(s->ang + 160) & 2047] >> 7;
-				zvel = (100 - ps[p].gethorizsum()) * 98;
+				zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (98. / 65536.));
 			}
 		}
 		else
@@ -804,7 +804,7 @@ void shoot_r(int i, int atwith)
 				if (sprite[j].picnum != RECON)
 					sa = getangle(sprite[j].x - sx, sprite[j].y - sy);
 			}
-			else zvel = (100 - ps[p].gethorizsum()) * 81;
+			else zvel = xs_CRoundToInt((IntToFixed(100) - ps[p].getq16horizsum()) * (81. / 65536.));
 			if (atwith == RPG)
 				S_PlayActorSound(RPG_SHOOT, i);
 			else if (isRRRA())
@@ -2843,12 +2843,12 @@ static void operateweapon(int snum, ESyncBits actions, int psect)
 			if (p->on_ground && (actions & SB_CROUCH) && !p->OnMotorcycle)
 			{
 				k = 15;
-				i = ((p->gethorizsum() - 100) * 20);
+				i = xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 			else
 			{
 				k = 140;
-				i = -512 - ((p->gethorizsum() - 100) * 20);
+				i = -512 - xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 
 			j = EGS(p->cursectnum,
@@ -3253,12 +3253,12 @@ static void operateweapon(int snum, ESyncBits actions, int psect)
 			if (p->on_ground && (actions & SB_CROUCH) && !p->OnMotorcycle)
 			{
 				k = 15;
-				i = ((p->gethorizsum() - 100) * 20);
+				i = xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 			else
 			{
 				k = 32;
-				i = -512 - ((p->gethorizsum() - 100) * 20);
+				i = -512 - xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 
 			j = EGS(p->cursectnum,
diff --git a/source/games/duke/src/player_w.cpp b/source/games/duke/src/player_w.cpp
index 80bc69c2a..d1b877568 100644
--- a/source/games/duke/src/player_w.cpp
+++ b/source/games/duke/src/player_w.cpp
@@ -333,12 +333,12 @@ void operateweapon_ww(int snum, ESyncBits actions, int psect)
 			if (p->on_ground && (actions & SB_CROUCH))
 			{
 				k = 15;
-				i = ((p->gethorizsum() - 100) * 20);
+				i = xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 			else
 			{
 				k = 140;
-				i = -512 - ((p->gethorizsum() - 100) * 20);
+				i = -512 - xs_CRoundToInt((p->getq16horizsum() - IntToFixed(100)) * (20. / 65536.));
 			}
 
 			j = EGS(p->cursectnum,
diff --git a/source/games/duke/src/types.h b/source/games/duke/src/types.h
index f9385319c..5f2090402 100644
--- a/source/games/duke/src/types.h
+++ b/source/games/duke/src/types.h
@@ -232,7 +232,9 @@ struct player_struct
 	int gethoriz() { return FixedToInt(q16horiz); }
 	int gethorizof() { return FixedToInt(q16horizoff); }
 	int gethorizsum() { return FixedToInt(q16horiz + q16horizoff); }
-
+	int getq16horiz() { return q16horiz; }
+	int getq16horizof() { return q16horizoff; }
+	int getq16horizsum() { return q16horiz + q16horizoff; }
 };