Quote:
Originally Posted by BruMatt
...But the real question is, "Does the reduction in case volume for bullet #3 cause a significant increase in pressure so I am wrong in using the same laod data for both bullets?"
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It may, and you might be.
Depending on if everything is the same but the seating depth and if you are using a maximum, or near maximum, load. And it could be even worse depending on which powder you are using as some are less tolerant to excessive heat and pressure as others.
And just for the record, if you take a loading manual printed by bullet no. 3's manufacturer, load it exactly as they say and with the same brands of powder and primers and go directly to the maximum, or near maximum load, you might still get a significant increase in pressure over what they printed.