Dim rRange As Range
Dim rDuplicate As Range

Set rRange = ActiveSheet.UsedRange
lFirstRow = rRange.Row
lLastRow = rRange.Rows.Count + rRange.Row - 1
lFirstColumn = rRange.Column
lLastColumn = rRange.Columns.Count + rRange.Column - 1
' New reference to current range (can be resized / moved)
Set rDuplicate = Range(Cells(lFirstRow, lFirstColumn), _
      Cells(lLastRow, lLastColumn))

Dim rLastCell As Range

Set rLastCell = ws.Cells.Find(What:="*", After:=ws.Cells(1, 1), _
    LookIn:=xlFormulas, LookAt:= xlPart, SearchOrder:=xlByColumns, _
    SearchDirection:=xlPrevious, MatchCase:=False)

MsgBox ("The last used column is: " & rLastCell.Column)

Dim rRange As Range
Dim rDuplicate As Range

Set rRange = ActiveSheet.UsedRange
lFirstRow = rRange.Row
lLastRow = rRange.Rows.Count + rRange.Row - 1
lFirstColumn = rRange.Column
lLastColumn = rRange.Columns.Count + rRange.Column - 1
' New reference to current range (can be truncated)
Set rDuplicate = Range(Cells(lFirstRow, lFirstColumn), _
      Cells(lLastRow, lLastColumn))