Thread: Trying something, Eric Cortina method of load development

Even with a micrometer die adjustment you still have to deal with the contact point of the seating stem being some way up the ogive from where the bullet will make contact with the rifling, and the possible variation in CBTO that that could introduce.
The Hornady gauge is inexpensive, and contacts closer to a more appropriate diameter on the bullet.



Anyone got a homemade gauge that they can post a photo of, with details on the construction, and of course of the huge improvements in accuracy that have accrued from its usage ?