Our Expander Balls are .001″ smaller than the bullet diameter with an estimated .001″ spring back, which should leave you with .002″ bullet tension.

“E-Z” Out® Die Expander Balls (ordered by the actual diameter) are also available separately.

Weight 0.00500 lbs
Bullet dia.

.204”, .224”, .243”, .257”, .264”, .277”, .284”, .307”, .308”, .311”, .323”, .338”, .375”

Resources

Caliber Sizing & Replacement Part Compatibility
High-resolution Image