Thin Necks
- Thread starter shinny
- Start date
F
f d shuster
Guest
shinny: I'm not knowledgable or skilled enough to know why, but after using a 6ppc with the .262" chamber neck, and when the barrel was due for replacement, I thought like you and had 2 barrels cut with .272" chamber necks. They are both very good. Then recently bought a used, like new 6ppc, also with 2 fitted barrels and chambered with .262" necks, so I'm back to outside neck turning to .0085". Comparing them side-by-side, the .262" vs .272", and the .262's always come out the winner, sometimes by only a very little, but still better. The .262's have been at the top since 1975, so their long time record speaks for itself.
Dick Grosbier
Club Coordinator
Why are .262 necks so popular in 6 PPC. Wouldn't it make scense to have the chambers cut larger as to eliminate the need to turn so much brass off of the necks.
I'm sure there are valid reasons for this and would appreciate if someone could explain just why?
Shinny
Glad to see you back.
Back in the early days of the ppc when using Sako 220 Russian brass by the time you blew the brass out about all you had left after cleaning necks up was .262 or .263 so Gunsmiths had reamers made appropriately. Now with the very uniform Lapua brass available it would not be necessary to have such thin necks but Gunsmiths and individuals who have their own reamers tend to stick with something that works. You see a few people migrating to thicker and even no turn necks these days but there are an awful lot of .262 , .263 neck reamers around.
Dick
L
Larry Elliott
Guest
Aside from what Dick said, the thicker necks may cause enough variability in neck tension to produce variable results on the target. In BR it doesn't take much variability to move from winning to not even close at the end of the day.
SGJennings
New member
I thought I read that Tony Boyer was shooting a .268 or .269. But, I thought I read somewhere else something that contradicted that. Anyone know for sure?
333smitty
Tomball Gun Club
Choosing a Chamber Neck Size Tony Boyer
" So what chamber neck diameter should you use? It depends on the gunsmith that built the rifle. The common range for benchrest chamber neck diameters is from .261" to .263" with .262" being the most popular. My choise for many years has been the .263" neck diameter and I have not yet seen a good reason to change."
Source;
The Book Of Rifle Accuracy
Tony Boyer
Page 140
" So what chamber neck diameter should you use? It depends on the gunsmith that built the rifle. The common range for benchrest chamber neck diameters is from .261" to .263" with .262" being the most popular. My choise for many years has been the .263" neck diameter and I have not yet seen a good reason to change."
Source;
The Book Of Rifle Accuracy
Tony Boyer
Page 140
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333smitty
Tomball Gun Club
Tony Boyer/ .268" Neck Size
SGJennings
You probably read this interveiw with Tony in Precision Shooting Magazine.
"Although I don't enjoy this part of the game, I do turn my own brass with a Nielson turner. When I shot a .263" neck, I turned the brass in two passes.
I have snce changed to a .268" neck and use only one pass to complete the job."
Precision Shooting Magazine August 2009
Page 11
SGJennings
You probably read this interveiw with Tony in Precision Shooting Magazine.
"Although I don't enjoy this part of the game, I do turn my own brass with a Nielson turner. When I shot a .263" neck, I turned the brass in two passes.
I have snce changed to a .268" neck and use only one pass to complete the job."
Precision Shooting Magazine August 2009
Page 11
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