A collet squeezes the case neck against a precision mandrel for a perfect fit with minimum run-out. No lube case is needed. Cases last ten times longer, so the savings on only 50 or so cases will pay for the die.
These dies size only the neck to preserve the perfect fit of fire forming. Only reload cases that have been fired in your gun.
308 Win. Collet Neck Die Only by Lee for sale since 2010-04-25 11:36:04