Index: code/weapon/beam.cpp
===================================================================
--- code/weapon/beam.cpp	(revision 10819)
+++ code/weapon/beam.cpp	(working copy)
@@ -354,7 +354,6 @@
 	new_item->objp = fire_info->shooter;
 	new_item->sig = fire_info->shooter->signature;
 	new_item->subsys = fire_info->turret;	
-	new_item->local_pnt = fire_info->turret->system_info->pnt;
 	new_item->life_left = wip->b_info.beam_life;	
 	new_item->life_total = wip->b_info.beam_life;
 	new_item->r_collision_count = 0;
@@ -1267,7 +1266,7 @@
 	int particle_count;
 	int idx;
 	weapon_info *wip;
-	vec3d turret_norm, turret_pos, particle_pos, particle_dir, p_temp;
+	vec3d turret_norm, turret_pos, particle_pos, particle_dir;
 	matrix m;
 	particle_info pinfo;
 
@@ -1296,7 +1295,7 @@
 	particle_count = (int)frand_range(0.0f, (float)wip->b_info.beam_particle_count);
 
 	// get turret info - position and normal
-	turret_pos = b->local_pnt;
+	turret_pos = b->last_start;
 	turret_norm = b->subsys->system_info->turret_norm;	
 
 	// randomly perturb a vector within a cone around the normal
@@ -1304,15 +1303,8 @@
 	for(idx=0; idx<particle_count; idx++){
 		// get a random point in the cone
 		vm_vec_random_cone(&particle_dir, &turret_norm, wip->b_info.beam_particle_angle, &m);
-		p_temp = turret_pos;
-		vm_vec_scale_add(&p_temp, &turret_pos, &particle_dir, wip->b_info.beam_muzzle_radius * frand_range(0.75f, 0.9f));
+		vm_vec_scale_add(&particle_pos, &turret_pos, &particle_dir, wip->b_info.beam_muzzle_radius * frand_range(0.75f, 0.9f));
 
-		// transform into world coords		
-		vm_vec_unrotate(&particle_pos, &p_temp, &b->objp->orient);
-		vm_vec_add2(&particle_pos, &b->objp->pos);
-		p_temp = particle_dir;
-		vm_vec_unrotate(&particle_dir, &p_temp, &b->objp->orient);
-
 		// now generate some interesting values for the particle
 		float p_time_ref = wip->b_info.beam_life + ((float)wip->b_info.beam_warmup / 1000.0f);		
 		float p_life = frand_range(p_time_ref * 0.5f, p_time_ref * 0.7f);
Index: code/weapon/beam.h
===================================================================
--- code/weapon/beam.h	(revision 10819)
+++ code/weapon/beam.h	(working copy)
@@ -164,7 +164,6 @@
 	int bank;
 
 	int Beam_muzzle_stamp;
-	vec3d local_pnt;
 	int firingpoint;
 
 	float		beam_width;