Are you having issues with primer crating???
Bolt bushing will solve your problems. Cratering is caused when you have a firing pin poorly fitted to its pin hole, the larger diameter of the pin hole also contributes to this condition.
By installing a bushing with the pin properly fitted and the hole diameter reduced to .0625 the problem is eliminated, with less unsupported surface area for the primer to push against during firing the issue of crating goes away.
Primer piercing or blanking is another reason to have your bolt bushed, however piercing can also be caused by excessive firing pin protrusion which will also checked and corrected if necessary during the installation.
*The bolt pictured on the right has had its firing pin bushed and reduced to .0625"
**10% off a firing pin back will apply if both are purchased at the same time. Discount code PINBACK
***After purchase, we will be in contact to manage local delivery or shipment of your bolt to us, and then to manage shipping back to you. The shipping charge you see at check out is to cover shipping your bolt back to you.