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Author Topic: Question on C.O.A.L. Chamber too long?  (Read 14520 times)

Offline 2labs

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Re: Question on C.O.A.L. Chamber too long?
« Reply #15 on: August 30, 2015, 02:08:29 PM »
Got a lee shot shell kit for Christmas when I was 12. Probably go to jail or get your kids yanked for that now. To answer your question, probably as long as you've been alive.
Now get off my lawn :yike:
Dino was robbed
Habitual Rock Poacher
Do these "attack" pants make my ass look big?

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #16 on: August 30, 2015, 02:09:57 PM »
To the op. Im sure you know but ill say it since it was brought up.Every bullet style weight whatever should have its own data.The C.O.AL will be different.For a Berger vs a Hornady.

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #17 on: August 30, 2015, 02:11:35 PM »
Got a lee shot shell kit for Christmas when I was 12. Probably go to jail or get your kids yanked for that now. To answer your question, probably as long as you've been alive.
Now get off my lawn :yike:
What is this even supposed to mean?Are you trying to cause an issue?

Offline 2labs

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Re: Question on C.O.A.L. Chamber too long?
« Reply #18 on: August 30, 2015, 02:14:40 PM »
It was a Clint Eastwood reference and a joke.
Lighten up.
Dino was robbed
Habitual Rock Poacher
Do these "attack" pants make my ass look big?

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #19 on: August 30, 2015, 02:16:21 PM »
Oh ok sir I am sorry lol.Havnt seen the movie.

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #20 on: August 30, 2015, 02:18:09 PM »
Im pretty new on here and Im sorry but you must admit that there are some on here that do try to cause a little drama.

Offline timberghost72

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Re: Question on C.O.A.L. Chamber too long?
« Reply #21 on: August 30, 2015, 02:31:59 PM »
To the op. Im sure you know but ill say it since it was brought up.Every bullet style weight whatever should have its own data.The C.O.AL will be different.For a Berger vs a Hornady.

I understand that. I am only loading one bullet type right now but bullet type is not relative to my questions since my issue will affect all bullets used.
It just seems my chamber is longer than it should be given the load data between overall length of it and recomended bullet seating depth for overall length. For this rifle, loading .050" off the lands is still much longer than recomended C.O.A.L.

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #22 on: August 30, 2015, 02:37:27 PM »
Yes sir agreed 100%  :yeah:.Reason in 1 word,Lawsuits,Insurance is another 1 word.  :tup:The more room to lands the less the pressure is.

Offline timberghost72

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Re: Question on C.O.A.L. Chamber too long?
« Reply #23 on: August 30, 2015, 02:46:32 PM »
Yes sir agreed 100%  :yeah:.Reason in 1 word,Lawsuits,Insurance is another 1 word.  :tup:The more room to lands the less the pressure is.

This does not make sense. If I load to manufacturer specs wouldn't I be raising my pressure since my bullet seating depth is further into the case  :dunno: This would also give me a .142" bullet jump as opposed to the .050" recommended jump. Maybe I will give Barnes a call.

Offline Hilltop123

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Re: Question on C.O.A.L. Chamber too long?
« Reply #24 on: August 30, 2015, 03:02:39 PM »
Are you confused or concerned as to why the deviation from sammi specs?

Offline Jonnyjammer

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Re: Question on C.O.A.L. Chamber too long?
« Reply #25 on: August 30, 2015, 03:03:42 PM »
if you put the ogive  on or even into the rifling the pressure can spike.Seating the bullet deeper doesnt seem to make much of a diff. in pressure.there are a lot of loads that are 100% loaded with powder

Offline Old Man Now

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Re: Question on C.O.A.L. Chamber too long?
« Reply #26 on: August 30, 2015, 03:15:33 PM »
For some reason tsx bullets usually do well with more jump than some other bullets might like.  Barnes recommends 0.050 jump to start with. I'd probably work up a load at that length and then adjust seating depth from there to fine tune it. :twocents:
Roger on that!
I have loaded the Barnes X bullets for about 22 yrs now (bought 100's of them) in five different calibers and I have found it to be correct - seat them to 50's off riflings - in your case that would be around 2.83 - 50's = 2.33. All my rifles are the Rem. 700's.
But, I also shoot all Moly coated bullets and seat them 50's from the Ojive and the 7mag/270 Win. are extremly accurate with the "x" bullet.
« Last Edit: August 30, 2015, 03:25:08 PM by Old Man Now »

Offline timberghost72

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Re: Question on C.O.A.L. Chamber too long?
« Reply #27 on: August 30, 2015, 03:24:13 PM »
Are you confused or concerned as to why the deviation from sammi specs?

No I'm not confused (Good thing. That could complicate things  :chuckle:) I guess it is more of a concern and wanted to get opinions and suggestions. I have no problem loading up at .050" off the lands making my OAL longer than book specs. I just have not seen that large of a difference in any of my other rifles.

My 300 WSM is measures out exactly to the .001" of what my Barnes book lists so that is why I am questioning my other caliber/rifle and it's (seemingly) large difference in what I found. If this is normal, then no problem. I just have not seen this before with my limited experience.

Offline timberghost72

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Re: Question on C.O.A.L. Chamber too long?
« Reply #28 on: August 30, 2015, 03:26:31 PM »
if you put the ogive  on or even into the rifling the pressure can spike.Seating the bullet deeper doesnt seem to make much of a diff. in pressure.there are a lot of loads that are 100% loaded with powder

Good to know  :tup: Makes sense.

Offline Old Man Now

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Re: Question on C.O.A.L. Chamber too long?
« Reply #29 on: August 30, 2015, 03:37:11 PM »
 timberghost72
I can't remember the last time that I ever loaded a shell to the C.O.A.L., it's been many years.
Here is what I have been using for last 25 years, I like it much better than the one you are using, I gave the one like yours away. http://www.sinclairintl.com/reloading-equipment/measuring-tools/bullet-comparators/sinclair-hex-style-bullet-comparators-prod34262.aspx

 


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