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Beartooth Regular
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1,177 Posts
Alan,

It's actually a taper/roll crimp hybrid. It is possible to get a slight galling condition with the brass and die if set too heavy. Check your cases as they come out of the die and adjust accordingly. Sometimes with cast bullets, the little bit of bullet lube near the case mouth from the previous seating operation, negates the problem.

Have fun!

Regards,


:cool:
 

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Beartooth Regular
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1,177 Posts
Also the stuff between the toes of, and this is important, your left foot. Not the right one.

You'll throw your balance off if you take it from the right foot I've found.

:biggrin:


Regards,

:cool:
 

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Beartooth Regular
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1,177 Posts
Matt,

Sounds like you have it there as far as crimp adjustment. That's why I said it's really a taper/roll crimp hybrid. It's not like a full taper crimp as it does have some "roll' into the crimp groove but also actually squeezes, "tapers" some of the case mouth into the boolit. This can be overdone just like any crimp. That's usually where any galling condition occurs. I would say with this crimp die and a regular taper crimp die, looks are decieving somewhat as they hold better with an appearance that looks like not enough crimp sometimes. An excessive or light roll crimp is easier to spot in contrast to these crimps.

The Lee Collet Crimper is another ball game altogether as it uses the shellholder bearing on a sliding collet in the die itself which just pushes the last 1/16" or so of the case into the bullet  with side pressure.

Alan you wildman, to be honest, I don't adjust the die that way. I usually go by the look of the crimp. You'll get a feel for it as you will see. Try a few crimps with it set too light and adjust from there.

Lastly, I myself, like to trim or make sure all case lengths are reasonably equal to one another. This will actually offer greater benefit in the long run as far as less crimp adjustment and more uniform crimps, negating especially, the dreaded "half-moon" look of a roll crimp on a case with an out of square mouth.

Have fun and don't get caught up to much in this crimp thingy.


Best Regards,


:cool:
 

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Beartooth Regular
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1,177 Posts
arkypete,

That's interesting. Is that the heavy bodied goop to which you refer? Do you get any dieseling at all as evidenced by ash on the side of the case especially at the neck/shoulder junction?

I've also read that Vitalis is supposed to work also. Think Steve Herrett used to use that to form 30 Herrett cases. Never tried it.

Regards,

:cool:
 
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