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Over-sized carbide button

The die is OK, the original button is OK and the aftermarket carbide button is OK, just a tad too big, giving me to little neck grip on the bullet. I don't want no badmouth the button maker since they didn't really do anything wrong. It's just that in this button/die/bullet combination, it is half a thou or so big.
I ordered 40micron diamond lapping past for just a few bucks on eBay and will try and see if that helps. Will post back here with results. Might take a while.


I'm still confused, If your bushing does not size the neck enough, how can you lap it smaller?I'm not badmouthing anybody, just don't understand what lapping will do for your problem.
 
Butch I think he said the original one was fine he replaced it with a carbide one and it was larger . I don't know why one is needed . Larry
 
I
He is talking about the expander ball
I assume he is thinking Lapping is the process to decrease the size . lol Larry


Expander ball with bushing dies? I guess I learn what people do every day that is different. Seems that if he was doing that a little emery paper with the stem in the lathe, drill, or drill press.
 
Expander ball with bushing dies?
Geez Butch, no longer can we rely on just a bushing to control our neck tension, we take it down even farther, then expand it back up, sometimes with mandrels. I call it boutique reloading, the Cascade kitchen counselor makes house visits concerning spots on brass from wet tumbling.
 
Geez Butch, no longer can we rely on just a bushing to control our neck tension, we take it down even farther, then expand it back up, sometimes with mandrels. I call it boutique reloading, the Cascade kitchen counselor makes house visits concerning spots on brass from wet tumbling.


Being in the carbide bushing in a few years past, I have them in many sizes and calibers. They are in .0005 increments. As stated, they do a much nicer job than the steel ones. I have about 100 steel bushings also. Granted, I have Grandsons older than a lot of you and have had a lot of time to accumulate all this stuff.
 
Expander ball with bushing dies?
No.
REGULAR FL DIE. No bushing.
Not lapping the button. Applying diamond lapping compound to a polishing tool to see if that CAN reduce the diameter of the button.
Now if that works, do I polish the button afterwards to a mirror Finnish? Or would that increase friction between inside of the neck and the button on its way out?
Anyone ever wondered about polishing their expander mandrel/button?
 
No.
REGULAR FL DIE. No bushing.
Not lapping the button. Applying diamond lapping compound to a polishing tool to see if that CAN reduce the diameter of the button.
Now if that works, do I polish the button afterwards to a mirror Finnish? Or would that increase friction between inside of the neck and the button on its way out?
Anyone ever wondered about polishing their expander mandrel/button?


OK, I guess I didn't read that it was a separate die. Why not just buy a smaller button?
Should have said sizing bushing.
 
No.
REGULAR FL DIE. No bushing.

Anyone ever wondered about polishing their expander mandrel/button?
Lol, I did, I had an expensive Powermatic wood lathe, I chucked on up once. 4 jaw chuck, took some emery cloth to it, most dilapidated POS ever, replaced with new.
 
Geez Butch, no longer can we rely on just a bushing to control our neck tension, we take it down even farther, then expand it back up, sometimes with mandrels. I call it boutique reloading, the Cascade kitchen counselor makes house visits concerning spots on brass from wet tumbling.
Before someone on here roasts me over this comment, trust me, I know there's a good number of guys on here that can make this method work, and I understand the concept fully.
I just read of it elsewhere and guys who thrive for 1/2moa accuracy embrace it, but the goal is tight ES & SD numbers only, with no regard for accuracy potential.
So no offense meant.
 

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