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Rifles, Reloading, Optics, Equipment
Reloading
25-06 case head seperation?
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<blockquote data-quote="Fitch" data-source="post: 367085" data-attributes="member: 19372"><p>I don't think that's correct. The shell holder touches the bottom of the die. It doesn't fit inside the die and can't go any farther toward the shoulder than the bottom of the die no matter how far in you turn the die. The die is not compressable at force levels generated by a manually operated press. If the die is designed to be set up at contact, which all of the ones I have are, it is physically impossible to size the brass too short for SAAMI specs. If it is too short for the chamber it is because the chamber is too long.</p><p> </p><p>Try an experiment. Screw the die in till you get firm contact with the shell holder. Size a case. Measure the base to shoulder distance. Screw the die in two full turns more. Size another case, the two cases will be the same base to shoulder distance.</p></blockquote><p>Since the case headspaces off of the shoulder, you can easily have excessive headspace. Someone correct me if I'm wrong, but I think anything over about .005 is considered loose........Rich[/QUOTE]</p><p> </p><p>The only way to get excessive headspace is if the chamber is out of spec long or the die is out of spec short. There is the possibility that the chamber it self has excessive headspace which is readily determined by using a no-go gage. If that is the case it would be possible to have the brass too short for the chamber but still within specification. In such a case it would also be bad to shoot factory ammo in that rifle.</p><p> </p><p>What am I missing here?</p><p> </p><p>Fitch</p><p>[/QUOTE]</p>
[QUOTE="Fitch, post: 367085, member: 19372"] I don't think that's correct. The shell holder touches the bottom of the die. It doesn't fit inside the die and can't go any farther toward the shoulder than the bottom of the die no matter how far in you turn the die. The die is not compressable at force levels generated by a manually operated press. If the die is designed to be set up at contact, which all of the ones I have are, it is physically impossible to size the brass too short for SAAMI specs. If it is too short for the chamber it is because the chamber is too long. Try an experiment. Screw the die in till you get firm contact with the shell holder. Size a case. Measure the base to shoulder distance. Screw the die in two full turns more. Size another case, the two cases will be the same base to shoulder distance. [/QUOTE]Since the case headspaces off of the shoulder, you can easily have excessive headspace. Someone correct me if I'm wrong, but I think anything over about .005 is considered loose........Rich[/QUOTE] The only way to get excessive headspace is if the chamber is out of spec long or the die is out of spec short. There is the possibility that the chamber it self has excessive headspace which is readily determined by using a no-go gage. If that is the case it would be possible to have the brass too short for the chamber but still within specification. In such a case it would also be bad to shoot factory ammo in that rifle. What am I missing here? Fitch [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
25-06 case head seperation?
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