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September 13, 2016, 09:03 AM | #26 |
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I am somewhat new to internet forum discussions, and absolutely did not realize crimping in the hand loading world was such a controversial topic.
I appreciate the thoughts and information. But in the end, I guess do whatever works for you since you are the one who has to live with the results. |
September 13, 2016, 10:12 AM | #27 |
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I use the factory style crimp die from Lee also.
Supports the shoulder while crimping the neck. MUCH more surface area on the shoulder than the mouth to get a good crimp. I would like to see a 6 'Finger' collet crimp instead of 4, But you get what's out there... I don't recommend crimping a bullet that doesn't have a cannelure, deforms the bullet too much. Since you can't order cannelure exactly where you want it, you are stuck with a cartridge over all length that works with the cannelure. Not a huge issue with most range ammunition, but can be a pain in the butt when you are loading close tolerance ammo for a particular rifle. |
September 13, 2016, 11:34 AM | #28 | |
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September 13, 2016, 03:46 PM | #29 |
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Never saw that before. I like the idea.
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September 13, 2016, 04:38 PM | #30 |
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Pretty slick little tool.
Ron |
September 13, 2016, 04:51 PM | #31 |
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That cannalure tool is slick..
Have you tested how it effects ballistic performance? Does it make much difference? |
September 13, 2016, 07:17 PM | #32 |
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I would note that such a tool is best used on rifle & revolver bullets
Semi auto pistols do not use a mouth crimp since that's where they headspace. Nor (IMHO) will a "factory (aka swage)" crimp do much to solve poor neck tension since it swages the bullet smaller right along with the case |
September 14, 2016, 07:44 PM | #33 |
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I'll be honest, I almost never use the tool, it was given to me.
About the only thing I have used it for is tube magazines or rather bullets used in them. For the most part I use neck tension to keep the bullet where it should be. It's pretty easy to test though, just load as normal, then chamber, eject and measure. Now fire a round, eject and measure. Repeat and measure, if they are not moving you are OK. If they are moving you cure the problem. |
September 14, 2016, 11:12 PM | #34 |
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I have been loading .308 for my AR and have been using the Lee Factory Crimp die. However, after reading this thread, I want to try some rounds without the crimp.
So my question is, how does one go about testing neck tension? BTW, I am using Hornady Match 168 gr HPBT
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September 15, 2016, 06:09 AM | #35 |
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Two classic methods, both starting with using a Sharpie to draw a fine ring around the bullet right at the mouth after reloading:
- Using your hands only, firmly press the bullet into a hard surface like the side of your reloading bench. (Don't go crazy, just firmly press.) ........Has the Sharpie mark moved into the case? - Load and cycle that bullet into the AR a few times. ........Has the Sharpie mark moved into the case? |
September 15, 2016, 07:24 AM | #36 |
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You don't need a marker, the calipers you set the OAL with will work fine to confirm the bullet has not moved.
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September 15, 2016, 08:49 AM | #37 | |
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September 15, 2016, 04:25 PM | #38 |
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I think I am still using that can opener.
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September 15, 2016, 07:28 PM | #39 | |
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If you have a ogive comparator, fine. But don't rely on OAL or you'll see changes that "aren't there." |
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September 15, 2016, 07:53 PM | #40 | |
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September 15, 2016, 09:54 PM | #41 | |
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Quote:
Although I note what my rifle loads COAL's are , I do not use that measurement in any official way . I set my seating dies ( all micrometers for rifle ) to my intended O-give measurement then check several cartridges to get my avg COAL for my notes . In this picture you can see I note all three measurements COAL , Comparator measurement (comp ) and my seater die setting When loading pistol I still use COAL most of the time . I recently had a 45 bullet that was all over the place when measuring COAL so I used a comparator measurement to set up the seating die for that bullet .
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September 17, 2016, 07:07 AM | #42 |
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I lightly crimp my Mini 14 reloads. I found the accuracy to be slightly better and very little chance of bullet jump at the end of a 30 round mag
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September 17, 2016, 07:29 PM | #43 |
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I have the FCD so I use it. Never had a bullet slip out of the case during cycling either.
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September 21, 2016, 10:50 PM | #44 |
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I crimp my 460 Rowland loads, for feeding reliability, that's about it for semi autos.
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