I am playing Fallout 4 vanilla survival level 50+ and I found a legendary Explosive Minigun. I like using frag grenades so I maxed my Demolition perk before. Now when I use the minigun in Vats, the enemy gets fragged and launched into the air, sometimes very far away. Is there a fix for this? I have had to swim into the middle of the sea one time due to it sending a legendary molerat flying out there. Or is it because the minigun is too powerful? What if I maxed my Heavy weapons perk too?
Try to avoid using it in VATS on a small target.
VATS will fire off a salvo of many bullets. The explosive force in a volley of shots will cause smaller bodies to go flying.
It's like setting off 20 grenades in the area.