Dusty Stevens
Shiner
What brand barrels do you usually chamber? If you dial in under the spider how far out is the muzzle usually?Why do I need to indicate the muzzle end of the barrel ? The bore isn’t straight. How about zeroing out under the center of the chamber end spider/chuck and just forward of where the lead will end. That way your bullet enters the bore strait so it can follow the crooked spiraling bore ? Thead the tennon and bore the chamber in alignment with the bore where the bullet enters the barrel is my understanding of best practice.