You are able to use all of the 357 Magnum dies for the 357 Maximum. You will have to back out the Powder Thru Expander Die and the Bullet Seating/Crimping Die three full turns. No adjustments are needed for the Sizing or Factory Crimp Dies. The only thing you might have to watch out for is the bullet. The bullet seating plug that comes with the die set is as close to generic as we can make it. If you find that the bullet seating plug deforms the nose of the bullet, or will not seat it to the proper depth, we can make a custom bullet seating plug to fit your bullet. For this we would need a sample bullet and payment of $8.00 + shipping & handling.