Experienced neck turners, need your advice!

[Niles Coyote]

Experienced neck turners, need your advice!

I have a new 223 with a .251” neck chamber. Prior to getting the rifle I purchased some Lapua cases to use in it.

With a bullet seated in the new case the O.D.neck measures .250”

I am not new to neck turning but I have never done more than clean off high spots.

My question is how much clearance is required for safety, I don't think .001" will be.

 

[Suasponte]

Re: Experienced neck turners, need your advice!

Do they chamber without you forcing the bolt?

If so, I would not "F" with them!

Terry

 

[Niles Coyote]

Re: Experienced neck turners, need your advice!

The one I seated a bullet in chambers fine.

 

[Suasponte]

Re: Experienced neck turners, need your advice!

If you wnat to even them up I would shave .001 off and that is it! You pretty much have the perfect fit.

With no work at that!

Terry

 

[6.5x61Super]

Re: Experienced neck turners, need your advice!

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">I have a new 223 with a .251” neck chamber. Prior to getting the rifle I purchased some Lapua cases to use in it.

With a bullet seated in the new case the O.D.neck measures .250”
My question is how much clearance is required for safety, I don't think .001" will be.</div></div>


0.251" - 0.223" = 0.028"

0.028" / 2 = 0.014" neck wall thickness

0.0251" - 0.250" = 0.001" Total

you're clearance is 0.001" / 2 = +/- 0.0005"


not so much a safety issue as is RELIABILITY issue.

I load for clearance of at least 0.001"

or

0.001" x 2 = 0.002"

my current wildcat, 6.5x61 Super

0.294" neck

0.294" - 0.264" = 0.030"

my necks are turned to 0.014"

0.014" x 2 = 0.028"

0.028" + 0.264" = 0.292"

0.002" Total or +/- 0.001" clearance.

 

[jbell]

Re: Experienced neck turners, need your advice!

I would recomend opening it up to .002 total ot .001 at any one point like 6.5x61super said. It does come down to a reliability issue. I use to shoot fitted necks in my bench rifles and after getting away from that I found NO accuracy loss , or gain. You can turn a little more off if you are goung to be shooting in a very dirty enviroment but the .002 total will work fine.

 

[Niles Coyote]

Re: Experienced neck turners, need your advice!

I shaved them down .0015-.002 and they are working fine. Thanks guys!

 

[esromvre]

Re: Experienced neck turners, need your advice!

I would hit them to be even all around and go with it.