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Am I about to blow my face off?!?

 
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  #1  
Old 04-14-2009, 12:16 AM
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Posts: 241
Am I about to blow my face off?!?

So i have another question...I have followed the advise from some of you here(and read in the nosler handbook) the way you go about finding the depth at which the bullet hits the lands.(if im not saying that correct im sure someone will let me know). I was surprised however to find that of the two bullets i was testing with one was seated quite a bit(to me anyway) deeper than the other.
Is it common for a heavier bullet with a higher bc to have a longer over all length than a lighter bullet?
These were my findings:

Hornady 180 GR SP Interlock.........3.440 overall length

Sierra 200 GR Spitzer Gameking........3.501 overall length


The nosler book says to seat the bullet .015 deeper than these readings.

I just wanted to make sure i was not missing something. I was going to go to the range tomorrow and the idea of shooting a bullet that i made is exciting and scary at the same time...

Last edited by AtownBcat; 04-14-2009 at 07:23 AM.
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Old 04-14-2009, 05:43 AM
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Join Date: Feb 2008
Posts: 448
Re: Am I about to blow my face off?!?

Quote:
Originally Posted by AtownBcat View Post
So i have another question...I have followed the advise from some of you here(and read in the nosler handbook) the way you go about finding the depth at which the bullet hits the lands.(if im not saying that correct im sure someone will let me know). I was surprised however to find that of the two bullets i was testing with one was seated quite a bit(to me anyway) deeper than the other.
Is it common for a heavier bullet with a higher bc to have a longer over all length than a lighter bullet?
These were my findings:

Hornady 180 GR SP Interlock.........3.440 overall length

Sierra 200 GR Spitzer Gaeking........3.501 overall length


The nosler book says to seat the bullet .015 deeper than these readings.

I just wanted to make sure i was not missing something. I was going to go to the range tomorrow and the idea of shooting a bullet that i made is exciting and scary at the same time...
Not necessarily, it depends on the shape, not the BC.
It's the ogive length and shape that changes from one bullet style/brand to another that gives different OAL when comparing 2 distinct bullet styles/brands.
Most true 'spitzer' bullets can be seated to a longer OAL because they have a long tapered ogive, and reach into the chamber further, while 'semi spitzer' style will have a shorter OAL becuase of their abrupt tapered ogive enters the chamber sooner.

This is why you have to 'work out' each OAL for each specific bullet style. It's much easier to use one style once you have worked out which the rifle prefers.
Cheers.
MagnumManiac.
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  #3  
Old 04-14-2009, 05:46 AM
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Join Date: Feb 2008
Posts: 448
Re: Am I about to blow my face off?!?

Quote:
Originally Posted by AtownBcat View Post
So i have another question...I have followed the advise from some of you here(and read in the nosler handbook) the way you go about finding the depth at which the bullet hits the lands.(if im not saying that correct im sure someone will let me know). I was surprised however to find that of the two bullets i was testing with one was seated quite a bit(to me anyway) deeper than the other.
Is it common for a heavier bullet with a higher bc to have a longer over all length than a lighter bullet?
These were my findings:

Hornady 180 GR SP Interlock.........3.440 overall length

Sierra 200 GR Spitzer Gaeking........3.501 overall length


The nosler book says to seat the bullet .015 deeper than these readings.

I just wanted to make sure i was not missing something. I was going to go to the range tomorrow and the idea of shooting a bullet that i made is exciting and scary at the same time...
Not necessarily, it depends on the shape, not the BC.

It's the ogive length and shape that changes from one bullet style/brand to another that gives different OAL when comparing 2 distinct bullet styles/brands.

Most true 'spitzer' bullets can be seated to a longer OAL because they have a long tapered ogive, and reach into the chamber further, while 'semi spitzer' style will have a shorter OAL becuase of their abrupt tapered ogive engages the rifling of the chamber sooner.

This is why you have to 'work out' each OAL for each specific bullet style. It's much easier to use one style once you have worked out which the rifle prefers.
Cheers.
MagnumManiac.
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  #4  
Old 04-14-2009, 01:14 PM
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Location: Mountians of SW NC, near Asheville
Posts: 1,596
Re: Am I about to blow my face off?!?

Well, it's "tomorrow" so by now you have either blown your face off or learned OAL really isn't al that critical.

???
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  #5  
Old 04-14-2009, 06:00 PM
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Join Date: Feb 2009
Posts: 241
Re: Am I about to blow my face off?!?

Yes it is tomorrow and i am happy to report that I still have a face. After i posted this question i loaded some 200Gr accubonds...there OAL was way up their. I have to admit that i was a little nervous.....but all the loads shot OK...nothing great but it was new never fired brass so know i will just neck size and see how it goes from here forward. No signs of high pressure but i wasn't that close to max loads....so i guess i would call today a success!!

Last edited by AtownBcat; 04-14-2009 at 07:09 PM.
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  #6  
Old 04-14-2009, 06:52 PM
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Join Date: Oct 2005
Location: Michigan
Posts: 2,232
Re: Am I about to blow my face off?!?

Congrats on the good test run,

Consider yourself completely infected now!

You better start saving for more reloading supplies!

AJ
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  #7  
Old 04-14-2009, 07:46 PM
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Join Date: Oct 2008
Location: Bryan, Tx
Posts: 284
Re: Am I about to blow my face off?!?

Gotta admit that pulling the trigger when you try something new is a little nerve racking.

Trust in your skills, or keep reading and researching until you do. That is the safe way. If not, tie a long piece of string to the trigger and hide around the corner........just kidding!
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