I have the following problem:
The 88mm guntube that came with the CMK 1/72 conversion kit is not straight...
and the walls of the white metal 251 halftrack are bent inwards.
So I have to correct these issues - I was thinking of gently heating them with a fan, or hot water, but before doing anything to these beauties, I wanted to ask for advice first.

The resin barrel can be dipped in hot water and then carefully reshaped before dipping in cold water to "set" again - alternatively you could gently heat it with a hairdryer. The white metal I don't know...

Tom