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#2
06-28-2016, 11:40 AM
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Doc,
There are at least two ways to fireform cases with an over length chamber. One is as you describe, with a false shoulder. However the easiest way for you with the RRB would be to seat the bullet out and use the bullet, pushed into the lands to hold the base of the case against the firing pin. Once the case fires, it will be the size of the chamber, then you just neck size from then on. With a single shot, use the extractor cut to set the cartridge head stamp to, say the first 7 so the case is always aligned. With cast bullets it is a snap to do with moderate loads. Ed
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