ImBillT
Well-known member
- Joined
- Oct 29, 2018
- Messages
- 3,896
The reason for jamming the bullet is so that when the firing pin strikes the cartridge case DOES NOT MOVE forward so that all of the pressure goes to moving or blowing out the shoulder. With the commercial availability of factory cases, there is little need to mess with .284 Win cases any longer.
I know the reason. I also know that it doesn’t work. The case still moves forward. It just seats the bullet a little deeper in the neck. The reason that you have fireformed so many 6.5-06AI cases successfully is because seating the bullets for hard jam is totally unnecessary to prevent the case from moving forward. The neck shoulder junction provides the resistance. That’s not the case when the chamber has .005”+ excess headspace.
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