Ammo weighs much less in Fallout 76 than in Fallout 4, but bobby pins are heavy now

“You are overencumbered and you can not run.” – does any other sentence instil fear in an RPG player as much as this?

Carry weight limitations have always been a big part of many RPGs, used as a balancing mechanic to stop players hoarding. In Fallout, it's what stops you carrying around a personal nuclear arsenal at all times.

In Fallout 76, it seems Bethesda has relaxed the system somewhat, perhaps since you can no longer use an NPC companion as a packhorse.

Reddit user ‘gethsbian' has been pouring through preview footage to note the weights of ammo types and compare them to their Fallout 4 versions. Across the board, there's a big reduction in weight for ammo types.

The only increase is with bobby pins, which now weigh more than bullets despite weighing nothing in Fallout 4. Here's what ‘gethsbian' has dug up so far.
Fallout 76 ammo weight

Ammo typeFallout 76 weightAmmo per lbFallout 4 weight

.308.006116.041

.38.003333.014

.44.003333.056

.45.003333.029

.50.005200.075

.50 ball.1.10

10mm.005200.025

5.56.005200.035

5mm.0011000.008

Fusion core3-4

Missile2-7