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Reloading advice ..... neck turning cases.

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Reloading advice ..... neck turning cases.

Old 03-25-2017, 11:22 AM
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Default Reloading advice ..... neck turning cases.

I watched a Dave Tubb's video and he said one of the most important things a shooter can do to improve accuracy is to turn the neck. I trust the guy, for good reason, so I bought a Hornady neck turner. I turned the necks on some once fired 6.5 CM brass.

In the pic below you see the results of three batches. On the left is the first batch that I believe I went too far in and shaved some of the shoulder. The middle case is from the second batch after making an adjustment. I touched the shoulder but not much. The case on the right I stayed off the shoulder.

I welcome your critiques, advice, suggestions and warnings.

FWIW .... I know I need to slow down the drill and walk the case in and out slower than I did.
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Old 03-25-2017, 11:41 AM
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Why does that improve accuracy?
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Old 03-25-2017, 11:49 AM
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Default Neck turning

The purpose of neck turning is ensure the release of the bullet is uniform. I call it neck trueing not neck turning When you fire a round the brass will flow somewhat,so that the uniformity of the neck is changed or altered. The degree will depend on several things, the chamber of the gun that it was fired in, the pressure of the cartridge when fired etc. the idea is not to remove material from the neck of the shell casing- but rather TRUE up the neck. Ideally you want to remove very little brass, remove just the "high side" this will bring the neck back to true. All three have too much neck removed. Ideally I want my necks to be as thick as possible, that way they will last longer. Unless you are a bench rest shooter I don't think you are going to see much of a improvement. Just my opinion.
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Old 03-25-2017, 11:54 AM
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So actually, you might be better off with a knurling tool as opposed to a lathe cutting tool?
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Old 03-25-2017, 12:14 PM
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Bullshit.
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Old 03-25-2017, 12:18 PM
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Looks like the strong possibility of blowing the case at the neck.
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Old 03-25-2017, 12:34 PM
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Originally Posted by bigyachty View Post
The purpose of neck turning is ensure the release of the bullet is uniform. I call it neck trueing not neck turning When you fire a round the brass will flow somewhat,so that the uniformity of the neck is changed or altered. The degree will depend on several things, the chamber of the gun that it was fired in, the pressure of the cartridge when fired etc. the idea is not to remove material from the neck of the shell casing- but rather TRUE up the neck. Ideally you want to remove very little brass, remove just the "high side" this will bring the neck back to true. All three have too much neck removed. Ideally I want my necks to be as thick as possible, that way they will last longer. Unless you are a bench rest shooter I don't think you are going to see much of a improvement. Just my opinion.
I am a bench shooter.

My OD went from .296 to .293/.294, so the neck wall dropped from .016 to .0145/.015. Tubb's said he was OK with reducing his case necks by .001.

I just consulted the video I mentioned earlier. While Tubb's did remove .0005 to .001 of thickness, he did what you suggested ... he simply removed the high spots only. Thanks for the comment.
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Old 03-25-2017, 12:36 PM
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Originally Posted by sshimanek View Post
Looks like the strong possibility of blowing the case at the neck.
That isn't good.
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Old 03-25-2017, 01:22 PM
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Originally Posted by Tireless View Post
I am a bench shooter.

My OD went from .296 to .293/.294, so the neck wall dropped from .016 to .0145/.015. Tubb's said he was OK with reducing his case necks by .001.

I just consulted the video I mentioned earlier. While Tubb's did remove .0005 to .001 of thickness, he did what you suggested ... he simply removed the high spots only. Thanks for the comment.
This. Just remove the high spots. Don't get into the shoulder. Throw that case away.
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Old 03-25-2017, 01:40 PM
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Originally Posted by muskamoot View Post
Bullshit.
Don't just leave us hanging ,what do you have to add.
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Old 03-25-2017, 01:52 PM
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Are you using Lapua brass???
Are you using hand swaged bullets???
Unless you are shooting benchrest you will never see any difference. Money and time is better spent buying a good set of flags and learning what they are telling you.
I shoot benchrest FWIW.
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Old 03-25-2017, 03:22 PM
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Originally Posted by mdman352 View Post
Are you using Lapua brass???
Are you using hand swaged bullets???
Unless you are shooting benchrest you will never see any difference. Money and time is better spent buying a good set of flags and learning what they are telling you.
I shoot benchrest FWIW.
Norma and Hornady brass in these pics. I have a box of lapua, unfired.

I use a RCBS press and match dies to seat bullets.

I benchrest so I enjoy trying to get a 1/2 MOA load down to a 1/3 or less.

So far I have resisted getting into annealing my brass.
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Old 03-25-2017, 03:23 PM
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Originally Posted by jpcanning View Post
Don't just leave us hanging ,what do you have to add.
I was wondering why he tossed in the BS flag.
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Old 03-25-2017, 03:23 PM
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Originally Posted by Gump88 View Post
This. Just remove the high spots. Don't get into the shoulder. Throw that case away.
All three?
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Old 03-25-2017, 03:58 PM
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Originally Posted by Tireless View Post
All three?
A pic makes it difficult to tell. But, if I felt like I got off into the shoulder, I would pitch it. Its not worth having a case neck break off during firing. Some can be a pain to remove, some come right out.
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Old 03-25-2017, 05:06 PM
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Why not just anneal and call it a day. I use the Giraud case trimmer and annealer. Seems like to great a risk of something bad happening and at a minimum shortening the life of your brass.

I am glad Lapua finally decided to get into the 6.5 Creedmore game.
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Old 03-25-2017, 06:08 PM
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Originally Posted by Gump88 View Post
A pic makes it difficult to tell. But, if I felt like I got off into the shoulder, I would pitch it. Its not worth having a case neck break off during firing. Some can be a pain to remove, some come right out.
Understood. Thanks.
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Old 03-25-2017, 06:10 PM
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Default Neck trueing

I guess I should have been more specific, I should have said unless your gun has a match chamber ,which usually means a custom barrel, not a over the counter gun (usually) . You will probably won't see any gains in neck turning. The key to accuracy is consistency. Sorting cases based on weight, measuring powder charge by trickler, vs power measure. Weighing bullets. And taking meticulous notes. I guess if I was to chose I would trim a case to length before I would worry about neck turning, but that is my 2cents. Reloading adds tons to the enjoyment to the shooting sports, it's a great hobby. NOW let me please get on my soap box. Most of us own fire arms, there are those out there who want to take that right away. Please either join the NRA or the pro group of your choice, but please join one. It amazes me how many folks who enjoy this sport who won't support it on the political level. Thank you for for allowing me to wave the flag.
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Old 03-25-2017, 06:56 PM
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My shooting and reloading goes back several decades, but the rule of thumb for reloading prep work was to not remove brass from the case any more than needed. What ever happened to neck-sizing; is it still done, out of date, or done prior to turning?
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Old 03-25-2017, 08:09 PM
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Originally Posted by Tireless View Post
Norma and Hornady brass in these pics. I have a box of lapua, unfired.

I use a RCBS press and match dies to seat bullets.

I benchrest so I enjoy trying to get a 1/2 MOA load down to a 1/3 or less.

So far I have resisted getting into annealing my brass.
I have a Ken Light annealer and have not used it in years. When I fire form lapua 220 Russian to PPC and the 6BR to 30 BR, I always turn into the neck a little bit as when they are fire formed they come out just right with no 'dreaded donut' inside the neck. I will get 30 or so firings from lapua brass and for match use only will make new cases. The older cases have plenty of life left in them.
Attached is my 6 PPC 5 shot group. If only I could do that every match.
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