Forster Expander Balls are .001a ^2 smaller than the bullet diameter with an estimated .001a ^2 spring back, which should leave you with .002a ^2 bullet tension. Mfg: Forster
| Brand Name | |
|---|---|
| Manufacturer_ID | DIESZR-E-10-224, DIESZR-E-10-264, DIESZR-E-10-307, DIESZR-E-10-375, DIESZRE10308, DIESZRE10375 |
