I found a barrel from one of the new model 22 45 acp guns. Can I have this barrel installed on a 25-2 or are the threads different from the old guns to the new ones?
How hard is it to change a barrel? is it just threaded on?
I have a 686-6 plus with 6" barrel. Can i buy another 4" barrel or is it cheaper and easier to buy another gun?
You need more than those two tools. You need to be able to take accurate measurements, probably a lathe in order to turn down the barrel's shoulder and tools to shorten & re-cut the forcing cone. It's a job for an experienced pro or the factory.