gopherfan

If you get one of these ignition systems - before you prime any of the cases insert the new breech plug in you gun. Then with each of the shells insert it into the breech plug and close the breech. You will find taht when you close the breech some of them will be difficult. What you are doing is forming the mouth of the case to the bottom of your breech plug.... it will be a tight seal that way.

good luck