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Discussion Starter · #1 ·
While following the direction in the BTB tec manual it says the bands of the bullet should turn nearly jet black with lapping coumpound.  When coating my bullets I could only get the top and bottom edges of the driving bands to turn black,  the middle of the bands had hardly and color at all.

Is this normal or unimportant, or am I doing something wrong?

If this has happened to anyone else please let me know how it affected the outcome of your lapping project>

Thanks
Marty
 

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It has been a while since I did any lapping, but I seem to remember having to use quite a bit of force when rolling the bullets between the glass slabs making the driving bands of my bullets totally black, if the old noggin is working well tonight.
 
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