The Firing Line Forums - View Single Post - Problem resizing .380 brass with RCBS die

Edward429451 · March 2, 2012, 09:58 AM

Even if it is an older set of dies with the decapper on the expander, it should still do lots of sizing. Perhaps not enough to iron out the deeper dings but you should be able to see a difference.

If they are that old, and look that new...they may have been bubba'd. I read about the diy types that modify dies and make tooling changes. This is ok if you know what you're doing, but so many times bubba picks up the wrong die, or goes too deep with the stone etc..(Mistakes are sold off but polished up first)

If you already did different types of brass, it screams bad die. Call RCBS and I bet they will send you a new die.

[QUOTEIt could be that RCBS sizing dies work differently from my Lee dies,][/QUOTE]

No. Sizing is accomplished the same way. Forced into a constriction to reduce the diameter. Bubba likely used to pinch his fingers with a tight sizer and a little case so thought to open er' up a little to make case insertion easier...and went too far.

March 2, 2012, 09:58 AM	#9
Edward429451 Junior member Join Date: November 12, 2000 Location: Colorado Springs, Colorado Posts: 9,494	Even if it is an older set of dies with the decapper on the expander, it should still do lots of sizing. Perhaps not enough to iron out the deeper dings but you should be able to see a difference. If they are that old, and look that new...they may have been bubba'd. I read about the diy types that modify dies and make tooling changes. This is ok if you know what you're doing, but so many times bubba picks up the wrong die, or goes too deep with the stone etc..(Mistakes are sold off but polished up first) If you already did different types of brass, it screams bad die. Call RCBS and I bet they will send you a new die. [QUOTEIt could be that RCBS sizing dies work differently from my Lee dies,][/QUOTE] No. Sizing is accomplished the same way. Forced into a constriction to reduce the diameter. Bubba likely used to pinch his fingers with a tight sizer and a little case so thought to open er' up a little to make case insertion easier...and went too far.