I am setting up a Dillon 550 machine to load 45 colt brass.
As I set up the machine, I have the sizing, bell, seating and crimp dies set. The bullets are sold as .452", but the one or two I measured are .454" I am using Star-line brass. The bullets are from Missouri Bullet, the brass is new and from the same vendor
After sizing and belling a case, seating the bullet expands the case by .005" along the length of the bullet.
The case after sizing is .470" The expanded area after seating is .475"
Also, the raw brass is close to .475" in diameter. After the sizing station, it is reduced to about .470"
Is this acceptable? Or do I need to resolve this? This expanded area is still within spec and loads in the revolver cylinder nicely
The service from Missouri bullet was outstanding, and I have no reason to question the products they offer, but want to make sure I have a proper setup, and the dimensional results are good.
As I set up the machine, I have the sizing, bell, seating and crimp dies set. The bullets are sold as .452", but the one or two I measured are .454" I am using Star-line brass. The bullets are from Missouri Bullet, the brass is new and from the same vendor
After sizing and belling a case, seating the bullet expands the case by .005" along the length of the bullet.
The case after sizing is .470" The expanded area after seating is .475"
Also, the raw brass is close to .475" in diameter. After the sizing station, it is reduced to about .470"
Is this acceptable? Or do I need to resolve this? This expanded area is still within spec and loads in the revolver cylinder nicely
The service from Missouri bullet was outstanding, and I have no reason to question the products they offer, but want to make sure I have a proper setup, and the dimensional results are good.
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