No good. The Waters case is 1.586" head to shoulder and the International is 1.483". Unload them and run it into your International die first. It has a steeper shoulder angle also. Form with a reduced/starting load also.
Pay close attention to headspace. If you see partially backed out primers with the reduced loads, you are pushing the shoulders back too far.
I've had this trouble with my 30-30 AI in the Contender. The cases cling to the chamber walls and only the primer backs out. I had to take factory ammo, pull the bullets, form a secondary shoulder on the case necks to the correct headspace and continue with fireforming. 30-30 case rims vary a lot in thickness and can't be relied upon to headspace correctly for fireforming operations. ESPECIALLY in the Contender.
FWIW, Ray
Pay close attention to headspace. If you see partially backed out primers with the reduced loads, you are pushing the shoulders back too far.
I've had this trouble with my 30-30 AI in the Contender. The cases cling to the chamber walls and only the primer backs out. I had to take factory ammo, pull the bullets, form a secondary shoulder on the case necks to the correct headspace and continue with fireforming. 30-30 case rims vary a lot in thickness and can't be relied upon to headspace correctly for fireforming operations. ESPECIALLY in the Contender.
FWIW, Ray