teach me about neck turning

[Mooster1223]

I'm having a 300 Norma Built. I need to send a case to the PTG to have the rifle properly throated for the Hornady 225's I plan on shooting. I think I want to neck turn to squeeze the most accuracy out of my new rifle. Problem is, I've never turned necks.

How do I go about specifying the neck diameter I want and once specified, what diameter do I need to turn the necks to? What do I look for in a quality turning tool?

Thanks

 

[bozo699]

Mooster1223,
Call Dave Kiff @ PT&G talk to him personally, tell him what you have and what you want to achieve, he will build you a reamer that will fit your needs. For your neck turner call John @ 21st century shooting 260-273-9909
http://www.21stcenturyshooting.com/
John has a short you tube video on turning and there is more on you tube on the subject also John may turn you on to some more neck turning help, I am not sure I could explain it well enough on a post, I hope some of this helps.
Wayne.

 

[artbosco]

I think I want to neck turn to squeeze the most accuracy out of my new rifle. Problem is, I've never turned necks.

Here's what neck turning is all about and what you're getting yourself into plus the tools you're going to need to do it right:

1. http://riflemansjournal.blogspot.com/2009/12/reloading-neck-turning.html

2. http://www.accurateshooter.com/technical-articles/reloading/complete-precision-case-prep/

Regardless of which company's tools you select, ensure the expanding mandrel and turning pilot are from the same company and you'll prevent a lot of headaches.

 

[RonAKA]

Your other option is to buy all your brass, load 20 rounds or so, and measure the OD of the loaded round necks. Add 0.0025" to the largest one you find, and make that your "no turn" neck size for the reamer. This would eliminate the need for neck turning, but still give you a tight neck. Agree that you should get Dave Kiff's advice. Your other issue is throat length. Dave would also be helpful on getting that right for your intended purpose.

 

[artbosco]

Your other option is to buy all your brass, load 20 rounds or so, and measure the OD of the loaded round necks. Add 0.0025" to the largest one you find, and make that your "no turn" neck size for the reamer. This would eliminate the need for neck turning, but still give you a tight neck.

A no-turn neck certainly prevents a lot of work, however you must be certain that you pick brass and bullets with considerable consistency in their manufacturing processes because that .0025" difference in the loaded round and chamber wall can evaporate very quickly if you change one of those components once you've established your reamer dimensions. In the end, you may have to turn just a tad to maintain your clearance since even the best, such as Lapua [brass], has been know to exceed previous years measurements.

Dave Kiff at PT&G [ http://www.pacifictoolandgauge.com/ ] is one of the best in his business and can certainly provide you not only with good advice but a reamer that will serve you well for years.

 

[P1ZombieKiller]

Add 0.0025" to the largest one you find, and make that your "no turn" neck size for the reamer.

A no-turn neck certainly prevents a lot of work, however you must be certain that you pick brass and bullets with considerable consistency in their manufacturing processes because that .0025" difference in the loaded round and chamber wall can evaporate very quickly if you change one of those components once you've established your reamer dimensions. In the end, you may have to turn just a tad to maintain your clearance since even the best, such as Lapua [brass], has been know to exceed previous years measurements.

Brass thickness can/does change within the manufactoring process. Remember they have "guidelines" which can be as much as .0015" and as long as the thickness of the necks fall within those guidelines, they are not considered faulty.

 

[Mooster1223]

I spoke to Dave today (3 times) and he helped me choose a reamer for my project. Dave happens to be a super nice guy and willing to help. I got the reamer on order for the project. Now on to choosing a tool and watching some videos. Thanks guys.