Tips on straightening resin?

I have some resin aftermarket guns for a Ju-87 I’m working on and the barrels aren’t quite straight. Not horrible, but it would be nice to straighten them out a bit. Anyone have any tricks other than bending them by hand?

Thanks,

Hot-Pb

Not sure how big these pieces are but here’s what I’ve done.

Thick and heavy. Heat water to near boiling and immerse the piece. Have a straightening jig ready. Clamp the piece in and immerse in cold water until cool.

Medium thick. Immerse in hot tap water until heated through. Again, have a jig ready and immesre in cold water.

Thin and delicate. Less heat, maybe even a light bulb. Gently bend with your hands and lalow to cool. I just straightened a coupe very curved 18th century 54 mm muskets this way.

Repeat each of these steps as necessary.

Thanks ajlafleche, that’s very handy. I hadn’t considered using hot water