CANNELURE GROVE

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CANNELURE GROVE

Post by Sasquatch-1 on Tue Jan 31, 2012 10:58 am

Is it necessary to put a cannelure grove in the jacketed bullet? I am going to be making 44 cal for my Super Blackhawk and Desert Eagle and just want to know. My current reloading dies use a roll crimp. Would I be better off using a taper crimp die?
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Re: CANNELURE GROVE

Post by Reload3006 on Tue Jan 31, 2012 11:17 am

I do both and roll crimp exclusively. I like cannelureing my bullets because I think it helps control expansion as well as giving a place to crimp into.
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Re: CANNELURE GROVE

Post by hawcer on Tue Jan 31, 2012 11:36 am

A cannelure is needed for a "proper" roll crimp. and is the best way to go. A taper crimp will work if the bullet doesn't have a cannelure.

That being said....I have put a light roll crimp on my home swaged bullets without a cannelure and have had successful results in my 44mag. I don't flare the cases either before seating the bullets...

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Re: CANNELURE GROVE

Post by EdgarEg on Tue Jan 31, 2012 2:15 pm

hawcer wrote:I don't flare the cases either before seating the bullets...
I tried that. And I got shaved lead. How do you avoid the shaved lead?
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Re: CANNELURE GROVE

Post by Reload3006 on Tue Jan 31, 2012 2:27 pm

he was talking a jacketed bullet. Probably one he swaged himself with 40S&W brass they are smaller on the base and you don't need to bell the case.

If using cast lead you are correct you will have to bell the case.
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Re: CANNELURE GROVE

Post by hawcer on Tue Jan 31, 2012 3:26 pm

Yeah...cast bullets require some flare. But the topic is about cannelures and cast bullets have cast in grooves for crimping to, jacketed bullets have cannelures. Wink

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