Windows 7 Pro 64-bit
Intel Core i7-4770K CPU @3.50GHz
ASUS nVidia GeForce GTX 760 2GB GDDR5 DirectCU Mini
Problem exists in all Blender 2.69 and 2.70 releases
This is not a bug, per se, but rather an inconsistancy in the scaling of a curve used as a bevel object along another curve. Please refer to the attached files.
You can see in the image that the bezier circle is mapped as a bevel object along both a bezier curve and a nurbs path.
When mapped along the nurbs path the bezier circle is mapped (as expected) in a one-to-one size relationship along the length of the nurbs path.
On the other hand, when the bezier circle is mapped as a bevel object along the bezier curve it has suddenly been scaled up - by a bit more than seven (7x) times larger.
Why does this difference exist? It does not seem logical.