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Bullets with cannulure? #6889962 09/17/17 07:12 PM
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DLALLDER Offline OP
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Do you think the crimp groove makes a difference in accuracy comparing it to the same bullet without the crimp groove in rifle applications





Re: Bullets with cannulure? [Re: DLALLDER] #6889983 09/17/17 07:48 PM
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If you're not crimping, I don't believe the presence or absence of a cannelure matters at all.


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Re: Bullets with cannulure? [Re: DLALLDER] #6890100 09/17/17 10:02 PM
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Originally Posted By: DLALLDER
Do you think the crimp groove makes a difference in accuracy comparing it to the same bullet without the crimp groove in rifle applications


Nope. I've not seen any difference.


Originally Posted By: theserxtremedays
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Re: Bullets with cannulure? [Re: DLALLDER] #6890117 09/17/17 10:15 PM
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Originally Posted By: DLALLDER
Do you think the crimp groove makes a difference in accuracy comparing it to the same bullet without the crimp groove in rifle applications


I've seen cannalure bullets wind drift right at 600+ yards, and slick bullets did not.

We had a right to left wind, and three 6.5 Grendels. The two guys shooting A-Max had to hold right wind, the one guy shooting SST, in the same weight, and BC, held no wind. His cannalure was overcoming the right to left wind, with spin drift.


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Re: Bullets with cannulure? [Re: DLALLDER] #6890122 09/17/17 10:23 PM
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That's believable...but would you call that a POI difference, or an accuracy difference?

nidea


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Re: Bullets with cannulure? [Re: RiverRider] #6890319 09/18/17 01:18 AM
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POI, no doubt about it. The SST bullets held perfect elevation, and once I figured out the drift, they held perfect left to right. They shot very consistent, they just rolled their way to the right as they did it, but it was predictable in what they were going to do, as they printed on top of each other. I literally watched trace, prior to impact. They ran plenty "accurate" once the gremlin was figured out.


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Re: Bullets with cannulure? [Re: DLALLDER] #6890818 09/18/17 03:06 PM
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Like the threads on a baseball.

Re: Bullets with cannulure? [Re: Sneaky] #6890850 09/18/17 03:35 PM
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Pretty much.


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Re: Bullets with cannulure? [Re: DLALLDER] #6890935 09/18/17 04:46 PM
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Interesting to read this. I have 100 150 grain nosler partitions that have canelures I have been putting off loading because the ones I developed my load with don't have them. I was planning on testing a few but reading this makes me more confident I wont find much difference.


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Re: Bullets with cannulure? [Re: Sneaky] #6890976 09/18/17 05:24 PM
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Originally Posted By: Sneaky
Like the threads on a baseball.


Excellent analogy.


Originally Posted By: theserxtremedays
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