does anybody have blueprints for a 12 gauge test gun that allows a person to come up with their own recipes safely. down the road I want to experiment with shorty slug loads but want a controlled way to check pressures.
if all you can say is its to dangerous and foolhardy than don't comment but if you have positive ideas or have done something like this I would love to hear about your trials and tribulations. just something I would like to experiment with but I do want it to be under a safe environment.