diff --git a/lib/cannery/ammo/ammo_group.ex b/lib/cannery/ammo/ammo_group.ex
index 6432069..3a48d33 100644
--- a/lib/cannery/ammo/ammo_group.ex
+++ b/lib/cannery/ammo/ammo_group.ex
@@ -9,7 +9,7 @@ defmodule Cannery.Ammo.AmmoGroup do
   use Ecto.Schema
   import Ecto.Changeset
   alias Cannery.Ammo.{AmmoGroup, AmmoType}
-  alias Cannery.{Accounts.User, Containers.Container, Tags.Tag}
+  alias Cannery.{Accounts.User, Containers.Container}
   alias Ecto.{Changeset, UUID}
 
   @primary_key {:id, :binary_id, autogenerate: true}
@@ -19,7 +19,6 @@ defmodule Cannery.Ammo.AmmoGroup do
     field :notes, :string
     field :price_paid, :float
 
-    belongs_to :tag, Tag
     belongs_to :ammo_type, AmmoType
     belongs_to :container, Container
     belongs_to :user, User
@@ -30,15 +29,13 @@ defmodule Cannery.Ammo.AmmoGroup do
   @type t :: %AmmoGroup{
           id: id(),
           count: integer,
-          notes: String.t(),
-          price_paid: float(),
-          tag: Tag.t(),
-          tag_id: Tag.id(),
-          ammo_type: AmmoType.t(),
+          notes: String.t() | nil,
+          price_paid: float() | nil,
+          ammo_type: AmmoType.t() | nil,
           ammo_type_id: AmmoType.id(),
-          container: Container.t(),
+          container: Container.t() | nil,
           container_id: Container.id(),
-          user: User.t(),
+          user: User.t() | nil,
           user_id: User.id(),
           inserted_at: NaiveDateTime.t(),
           updated_at: NaiveDateTime.t()
diff --git a/priv/repo/migrations/20210903015611_create_ammo_groups.exs b/priv/repo/migrations/20210903015611_create_ammo_groups.exs
index 0dd0ae9..547c94b 100644
--- a/priv/repo/migrations/20210903015611_create_ammo_groups.exs
+++ b/priv/repo/migrations/20210903015611_create_ammo_groups.exs
@@ -8,7 +8,6 @@ defmodule Cannery.Repo.Migrations.CreateAmmoGroups do
       add :price_paid, :float
       add :notes, :text
 
-      add :tag_id, references(:tags, on_delete: :nothing, type: :binary_id)
       add :ammo_type_id, references(:ammo_types, on_delete: :delete_all, type: :binary_id)
       add :container_id, references(:containers, on_delete: :nothing, type: :binary_id)
       add :user_id, references(:users, on_delete: :delete_all, type: :binary_id)
@@ -16,7 +15,6 @@ defmodule Cannery.Repo.Migrations.CreateAmmoGroups do
       timestamps()
     end
 
-    create index(:ammo_groups, [:tag_id])
     create index(:ammo_groups, [:ammo_type_id])
     create index(:ammo_groups, [:container_id])
     create index(:ammo_groups, [:user_id])