diff --git a/include/boost/multi_index/random_access_index.hpp b/include/boost/multi_index/random_access_index.hpp
index 9c3586d..724ad1b 100644
--- a/include/boost/multi_index/random_access_index.hpp
+++ b/include/boost/multi_index/random_access_index.hpp
@@ -541,7 +541,7 @@ public:
     BOOST_MULTI_INDEX_CHECK_DIFFERENT_CONTAINER(
       this->final(*this),this->final(x));
     BOOST_MULTI_INDEX_RND_INDEX_CHECK_INVARIANT;
-    splice_impl(position,x,boost::is_copy_constructible<value_type>());
+    external_splice(position,x,boost::is_copy_constructible<value_type>());
   }
 
   template<typename Index>
@@ -568,7 +568,8 @@ public:
       if(pn!=in)relocate(pn,in);
     }
     else{
-      splice_impl(position,x,i,boost::is_copy_constructible<value_type>());
+      external_splice(
+        position,x,i,boost::is_copy_constructible<value_type>());
     }
   }
 
@@ -596,29 +597,25 @@ public:
     BOOST_MULTI_INDEX_CHECK_IS_OWNER(last,x);
     BOOST_MULTI_INDEX_CHECK_VALID_RANGE(first,last);
     BOOST_MULTI_INDEX_RND_INDEX_CHECK_INVARIANT;
-    splice_impl(
-      position,x,first,last,boost::is_copy_constructible<value_type>());
-  }
-
-  void splice(
-    iterator position,random_access_index<SuperMeta,TagList>& x,
-    iterator first,iterator last)
-  {
-    BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(position);
-    BOOST_MULTI_INDEX_CHECK_IS_OWNER(position,*this);
-    BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(first);
-    BOOST_MULTI_INDEX_CHECK_VALID_ITERATOR(last);
-    BOOST_MULTI_INDEX_CHECK_IS_OWNER(first,x);
-    BOOST_MULTI_INDEX_CHECK_IS_OWNER(last,x);
-    BOOST_MULTI_INDEX_CHECK_VALID_RANGE(first,last);
-    BOOST_MULTI_INDEX_RND_INDEX_CHECK_INVARIANT;
-    if(&x==this)relocate(position,first,last);
+    if(x.end().get_node()==this->header()){ /* same container */
+      BOOST_MULTI_INDEX_CHECK_OUTSIDE_RANGE(position,first,last);
+      internal_splice(position,first,last);
+    }
     else{
-      splice_impl(
+      external_splice(
         position,x,first,last,boost::is_copy_constructible<value_type>());
     }
   }
 
+  template<typename Index>
+  BOOST_MULTI_INDEX_ENABLE_IF_MERGEABLE(random_access_index,Index,void)
+  splice(
+    iterator position,BOOST_RV_REF(Index) x,
+    iterator first,iterator last)
+  {
+    splice(position,static_cast<Index&>(x),first,last);
+  }
+
   void remove(value_param_type value)
   {
     BOOST_MULTI_INDEX_RND_INDEX_CHECK_INVARIANT;
@@ -1104,11 +1101,11 @@ private:
   }
 
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,boost::true_type /* copy-constructible value */)
   {
     if(get_allocator()==x.get_allocator()){
-      splice_impl(position,x,boost::false_type());
+      external_splice(position,x,boost::false_type());
     }
     else{
       /* backwards compatibility with old, non-transfer-based splice */
@@ -1131,7 +1128,7 @@ private:
   }
 
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,
     boost::false_type /* copy-constructible value */)
   {
@@ -1148,12 +1145,12 @@ private:
   }
 
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,BOOST_DEDUCED_TYPENAME Index::iterator i,
     boost::true_type /* copy-constructible value */)
   {
     if(get_allocator()==x.get_allocator()){
-      splice_impl(position,x,i,boost::false_type());
+      external_splice(position,x,i,boost::false_type());
     }
     else{
       /* backwards compatibility with old, non-transfer-based splice */
@@ -1176,7 +1173,7 @@ private:
   }
 
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,BOOST_DEDUCED_TYPENAME Index::iterator i,
     boost::false_type /* copy-constructible value */)
   {
@@ -1188,15 +1185,32 @@ private:
     }
   }
 
+  template<typename Iterator>
+  void internal_splice(iterator position,Iterator first,Iterator last)
+  {
+    index_node_type* pn=position.get_node();
+    while(first!=last){
+      relocate(pn,static_cast<index_node_type*>((first++).get_node()));
+    }
+  }
+
+  void internal_splice(iterator position,iterator first,iterator last)
+  {
+    index_node_type* pn=position.get_node();
+    index_node_type* fn=static_cast<index_node_type*>(first.get_node());
+    index_node_type* ln=static_cast<index_node_type*>(last.get_node());
+    if(pn!=ln)relocate(pn,fn,ln);
+  }
+
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,
     BOOST_DEDUCED_TYPENAME Index::iterator first,
     BOOST_DEDUCED_TYPENAME Index::iterator last,
     boost::true_type /* copy-constructible value */)
   {
     if(get_allocator()==x.get_allocator()){
-      splice_impl(position,x,first,last,boost::false_type());
+      external_splice(position,x,first,last,boost::false_type());
     }
     else{
       /* backwards compatibility with old, non-transfer-based splice */
@@ -1218,7 +1232,7 @@ private:
   }
 
   template<typename Index>
-  void splice_impl(
+  void external_splice(
     iterator position,Index& x,
     BOOST_DEDUCED_TYPENAME Index::iterator first,
     BOOST_DEDUCED_TYPENAME Index::iterator last,