What did the seller tell you it was?Bought this not knowing it was so small. Price was right - sure I can use another .223 expander... It's stamped .223 So, what is it?
Did ya watch my video?No powder is flowing thru the tip of that little expander plug.
If you look at how it is shaped and envision it in use, it pretty much tells you what it does. The teardrop enters the neck and swages it to the max diameter of the bulb minus some spring back. It continues down to expand the entire neck. The portion above enters the expanded neck (with some clearance and continues until the flared portion puts a small flare into the mouth for ease of bullet entry.
Now, the very top portion could be to produce the M-die type socket in the case mouth and the angled surface below is the final lead into the case. But only measuring the piece will be able to tell you if that is the case.
The right die is unrelated - just for size comparison.
I think it is an expander for a Lyman Tru-Line Jr die set, vintage 1970's.
Can't agree with you, CW. The tip of the slug in his hand comes almost to a point. And judging by his fingers, it's about a .30 cal slug. If there is a hole in the center of that pointed end, it's damn small, probably around 1/16", maybe 3/32" tops and would flow fine ball powder like an hour-glass and flake powder would probably just jam up.We cannot see the tip of the die in your hand. But even if you look at the pic on the link to my video. That piece in my fingers looks much like yours and mine is a thru powder.
It appears to have been buffed all over to clean up patina? It is the "cheap line knurling" on the end that makes me think that.If it had been blued, I might have caught that.
OK, probably not, but now that you mention it - it sure looks like the ones I spent many hours of nasty evenings hovering over as a kid.
It says "COLT" at the bottom of the die.Bought this not knowing it was so small. Price was right - sure I can use another .223 expander... It's stamped .223 So, what is it?
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