Copy+Paste using 'Range=Range' not working

I'm trying to copy a large number amount of data from a table in one workbook into a table on another workbook.

For some reason the code works if I copy and then paste the values:

Workbooks("CaveatorM copy").Sheets("CaveatLists").Range("Table49[[ListDate]:[Current Role]]").Copy
Workbooks("Pre-releaseReports").Sheets("CaveatLists").Range("SavedCaveats[[Date Saved]:[Current Role]]").PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks:=False, Transpose:=False

but nothing happens if I try the Range=Range method:

Workbooks("Pre-releaseReports.xlsm").Sheets("CaveatLists").Range("SavedCaveats[[Date Saved]:[Current Role]]").Value = Workbooks("CaveatorM copy.xlsm").Sheets("CaveatLists").Range("Table49[[ListDate]:[Current Role]]").Value

The process is really slow which is why I am trying to speed it up this way, grateful if anyone can spot what I'm doing wrong!

Thanks in advance

Oooh no they're not the same! The number of columns are the same but the destination table starts out empty (so only one row) and the number of rows in the first table will change each time I do it. Will that method not work then? I could work out some code to calculate the number of rows required and put them in but I reckon that would slow it down anyway..
Cheers

ps. thanks for the link to the code tags, was wondering how to do that..