Taking the pipes out into the cold the other day to do some target practice, found the aluminum getting very
cold even with a guy like me who's told is full of hot air.
Here is a simple mod you can do to your home made jobbies that is in keepiing with this sport...cheap!
I grabbed at the local hardeware store some 1/2 inch pipe foam insulation. It also comes in 3/4 inch for your
bigger calibers. $.69 for a 4 ft piece!
All is needed is a sharp knife, some electrical tape, slide it on, get it in the right spot for you, and tape it down.
Very comfortable, and it will keep the cold pipes from seeping through to your hands when out in the field.