Neck tension vs accuracy

[Jolten]

Is there a significant amount of difference between .001 and .002 neck tension and related accuracy?

For my .308 I've got a Lee collet die and it came​ with a .001 neck tension rod. I was given a .002 neck tension rod for my birthday.

[Biggerhammer]

Standard is .003. For a hunting rifle, neck tension is the least of your worries.

[Jolten]

Hmm interesting. I'm going to run a few batches of varget with br2 primers with the 165gr gamekings.

In your opinion where would you rank the critical areas for accuracy when reloading?

My last loading would have 2touch then one about an inch in a random direction. Would neck tension help this or would seating depth be a better area to adjust?

[Bill W]

what I've found out about neck tension is you want it the same.

[hogslayer]

The only time that i had the issue of two touching then one flyer about an inch away, was when the load was pretty hot and it was a stock fluted #3 barrel.  It would get hot and that third shot would always wonder.  I would shoot 2, then wait 5 min and shoot the 3rd and it would be right there.  Another thing you could do is shoot over a chrono and make sure that your fps has a good average.  Are you separating your brass for how many times they have been fired?

[Biggerhammer]

If one was to fire let's say four three shot groups letting the barrel cool in between groups and you have two touching and one out.

It's a free float issue or a bedding issue. If it consistently produces the same 2 in and 1 out groups.

[CaNINE]

Like biggerhammer said, for general purpose hunting it's not important.  But if you want single digit ES it's pretty critical.   I've played with different amounts of neck tension for long range precision.  I've settled on 0.002 and achieve it by neck sizing using a carbide turning mandrel in a Sinclair bushing.  If your looking for consistent results and low ES you must have even and consistent neck tension. 

[Jolten]

If one was to fire let's say four three shot groups letting the barrel cool in between groups and you have two touching and one out.

It's a free float issue or a bedding issue. If it consistently produces the same 2 in and 1 out groups.

Hmm it's about 2-3 minutes between shots in a heavy barreled savage 10t in .308. in an accustock. I didn't think barrel heat would be that big a factor

[Biggerhammer]

Well then it may be you.

I know nothing about neck tension.

[yorketransport]

Well then it may be you.

I know nothing about neck tension.

Name that case!

I don't really worry that much about neck tension. If it holds a bullet reasonably well I'm ready to roll!

[Jolten]

Well then it may be you.

I know nothing about neck tension.

Name that case!

I don't really worry that much about neck tension. If it holds a bullet reasonably well I'm ready to roll!

Lol it probably is just me. Just another reason to practice more right.

And to take a guess 6.5badger?

[chester]

Well then it may be you.

I know nothing about neck tension.

Name that case!

I don't really worry that much about neck tension. If it holds a bullet reasonably well I'm ready to roll!

Lol it probably is just me. Just another reason to practice more right.

And to take a guess 6.5badger?

6.5 STW?

[b23]

That's not an STW case because there's no belt so I'm going to guess something necked down off of a RUM case with the shoulder blown out and pushed forward.

[Biggerhammer]

Well then it may be you.

I know nothing about neck tension.

Name that case!

I don't really worry that much about neck tension. If it holds a bullet reasonably well I'm ready to roll!

Lol it probably is just me. Just another reason to practice more right.

And to take a guess 6.5badger?

It's my 6.5 Badger. A necked down, blown out .338 Ultra Magnum case with a 40 degree shoulder.

From left to right.

Left .458-.375 Ultra Magnum 500gr Hornady (I've taken one bull Elk with it). Second from the left is Yorke's creation .375 BME, a blown out 40 degree .375 Ultra Magnum with a 350gr Sierra Match King. Third from the left is the 6.5 Badger with a 160gr Matrix VLD. Far right a standard .338 Ultra Magnum case.

[Jolten]

Woohoo. I talked to York about the 6.5badger. it's a very intriguing round.

[Bill W]

I have two neck turners I use.  One is a Sinclair or something similar.  The other is a Pumpkin and has the ability for some micro adjustment.  It has a cam built in that adjusts down to the 1/10000.    I also use two sets of neck bushing dies.  The usual is a Redding neck bushing die and the other is a set of Wilson dies for 6PPC.

[yorketransport]

It's my 6.5 Badger. A necked down, blown out .338 Ultra Magnum case with a 40 degree shoulder.

From left to right.

Left .458-.375 Ultra Magnum 500gr Hornady (I've taken one bull Elk with it). Second from the left is Yorke's creation .375 BME, a blown out 40 degree .375 Ultra Magnum with a 350gr Sierra Match King. Third from the left is the 6.5 Badger with a 160gr Matrix VLD. Far right a standard .338 Ultra Magnum case.

Your brass always looks so shiny! Mine look like I just pulled them out of a fishing tackle box. 

[Bofire]

  geeeeez Bigger Hammer!!! "I don't know nuthin bout dat"  LOL
Carl

[Biggerhammer]

Absolutely Nuttin! 🙃

[Jolten]

Still thinking that'd be an awesome hunting rifle caliber.

[yorketransport]

Still thinking that'd be an awesome hunting rifle caliber.

You're making me feel bad about never shooting mine now!

[high country]

If a guy is going to shoot at any longer range then neck tension is very important.  If you're a 400 yard type max range guy....not a big deal.  If you shoot lrabs it's uber critical. Slight variables in neck tension mess with them bad.

[Jolten]

Still thinking that'd be an awesome hunting rifle caliber.

You're making me feel bad about never shooting mine now!

Could donate it to me