diff --git a/data/json/harvest_dissect.json b/data/json/harvest_dissect.json
index 1d3b280842e16..dc8afa7241c28 100644
--- a/data/json/harvest_dissect.json
+++ b/data/json/harvest_dissect.json
@@ -665,13 +665,19 @@
         "drop": "bio_power_storage",
         "type": "bionic",
         "flags": [ "FILTHY", "NO_STERILE", "NO_PACKED" ],
-        "faults": [ "fault_bionic_salvaged" ]
+        "faults": [ "fault_bionic_salvaged" ],
+        "base_num": [ 0, 2 ],
+        "scale_num": [ 0.1, 0.6 ],
+        "max": 5
       },
       {
         "drop": "cyborg_harvest",
         "type": "bionic_group",
         "flags": [ "FILTHY", "NO_STERILE", "NO_PACKED" ],
-        "faults": [ "fault_bionic_salvaged" ]
+        "faults": [ "fault_bionic_salvaged" ],
+        "base_num": [ 0, 2 ],
+        "scale_num": [ 0.1, 0.6 ],
+        "max": 5
       }
     ]
   },
@@ -684,13 +690,19 @@
         "drop": "Zomborg_CBM_harvest",
         "type": "bionic_group",
         "flags": [ "NO_STERILE", "NO_PACKED", "FILTHY" ],
-        "faults": [ "fault_bionic_salvaged" ]
+        "faults": [ "fault_bionic_salvaged" ],
+        "base_num": [ 0, 2 ],
+        "scale_num": [ 0.1, 0.6 ],
+        "max": 5
       },
       {
         "drop": "Zomborg_CBM_harvest_power",
         "type": "bionic_group",
         "flags": [ "NO_STERILE", "NO_PACKED", "FILTHY" ],
-        "faults": [ "fault_bionic_salvaged" ]
+        "faults": [ "fault_bionic_salvaged" ],
+        "base_num": [ 0, 2 ],
+        "scale_num": [ 0.1, 0.6 ],
+        "max": 5
       }
     ]
   }
diff --git a/src/activity_handlers.cpp b/src/activity_handlers.cpp
index e2704e6917b2e..9207988b0b812 100644
--- a/src/activity_handlers.cpp
+++ b/src/activity_handlers.cpp
@@ -359,7 +359,7 @@ static bool check_butcher_dissect( const int roll )
     // Roll is reduced by corpse damage level, but to no less then 0
     add_msg_debug( debugmode::DF_ACT_BUTCHER, "Roll = %i", roll );
     add_msg_debug( debugmode::DF_ACT_BUTCHER, "Failure chance = %f%%",
-                   ( 19.0f / ( 10.0f + roll * 5.0f ) ) * 100.0f );
+                   ( 10.0f / ( 10.0f + roll * 5.0f ) ) * 100.0f );
     const bool failed = x_in_y( 10, ( 10 + roll * 5 ) );
     return !failed;
 }
@@ -816,17 +816,19 @@ static bool butchery_drops_harvest( item *corpse_item, const mtype &mt, Characte
         practice += ( 4 + butchery ) / entry_count;
         const float min_num = entry.base_num.first + butchery * entry.scale_num.first;
         const float max_num = entry.base_num.second + butchery * entry.scale_num.second;
+
         int roll = 0;
         // mass_ratio will override the use of base_num, scale_num, and max
         if( entry.mass_ratio != 0.00f ) {
             roll = static_cast<int>( std::round( entry.mass_ratio * monster_weight ) );
             roll = corpse_damage_effect( roll, entry.type, corpse_item->damage_level() );
-        } else if( action != butcher_type::DISSECT ) {
+        } else {
             roll = std::min<int>( entry.max, std::round( rng_float( min_num, max_num ) ) );
             // will not give less than min_num defined in the JSON
             roll = std::max<int>( corpse_damage_effect( roll, entry.type, corpse_item->damage_level() ),
                                   entry.base_num.first );
         }
+
         itype_id drop_id = itype_id::NULL_ID();
         const itype *drop = nullptr;
         if( entry.type->is_itype() ) {