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Max Online: 16728 @ 03/25/12 08:51 AM
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#6019412 - 11/09/15 11:25 AM Bullet seating
DLALLDER Online   content
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Registered: 11/23/05
Posts: 2946
Loc: Pittsburg, Texas
How do you set up the bullet seating die in your press? How much variance do you have in oal after setting the die? I am getting 3-4 thousands difference.
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#6019453 - 11/09/15 11:44 AM Re: Bullet seating [Re: DLALLDER]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 10495
Loc: Lewisville, TX
If you are seating a bthp bullet, the tip alone on a hp bullet can vary by .010". If it's a plastic tip, it shouldn't vary but by a few thousandths. .003-.004" is not bad. If you measure from the ogive of the bullet, that will tell you your actual variance. Most tips on bullets will vary a little, so 3-4 k isn't bad.
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#6019479 - 11/09/15 11:58 AM Re: Bullet seating [Re: DLALLDER]
DLALLDER Online   content
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Registered: 11/23/05
Posts: 2946
Loc: Pittsburg, Texas
Chad I am using Barnes tsx in a 7-08. Would the micrometer type do a better job?
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#6020187 - 11/09/15 06:46 PM Re: Bullet seating [Re: DLALLDER]
Michael W. Offline
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Registered: 11/22/10
Posts: 3132
Loc: Central Texas / Comal County
I don't know if you have one, but a bullet comparator is what you need. It measure from the ogive of the bullet. Like
Chad said, a small variation is not a problem.
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#6020206 - 11/09/15 06:51 PM Re: Bullet seating [Re: Michael W.]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 20085
Loc: Wolfe City, TX
Originally Posted By: Michael W.
I don't know if you have one, but a bullet comparator is what you need. It measure from the ogive of the bullet. Like
Chad said, a small variation is not a problem.


This.

Measuring O.A.L. to the tip of the bullet is not as accurate and consistent as measuring from case head to bullet ogive.
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#6020573 - 11/09/15 09:46 PM Re: Bullet seating [Re: DLALLDER]
DLALLDER Online   content
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Registered: 11/23/05
Posts: 2946
Loc: Pittsburg, Texas
Thanks guys, now someone tell me what it
Looks like. What brand to buy.
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#6020846 - 11/10/15 06:53 AM Re: Bullet seating [Re: DLALLDER]
headhunter54 Offline
Tracker

Registered: 07/07/11
Posts: 578
Loc: Longview, TX
Go to Sinclair or Midway and look at Hornady bullet comparator. Can get a set or individual ones for your caliber. They attach to your micrometer and easy to use.

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#6020933 - 11/10/15 08:05 AM Re: Bullet seating [Re: DLALLDER]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 10495
Loc: Lewisville, TX
I prefer to use this Sinclair Hex Nut to measure the ogive. It's faster and easier to use. May other shooters use the Hornady comparator, so I have one of those also to use from their reference numbers. But for using around the shop for my own use, I like the Sinclair hex nut better.
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#6020941 - 11/10/15 08:10 AM Re: Bullet seating [Re: DLALLDER]
Cleric Offline
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Registered: 03/11/12
Posts: 2779
This may be a dumb question but is that long enough to measure overall length?

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#6020991 - 11/10/15 08:37 AM Re: Bullet seating [Re: Cleric]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 10495
Loc: Lewisville, TX
Originally Posted By: Cleric
This may be a dumb question but is that long enough to measure overall length?


The hex nut is 1" long and has holes in it that the bullet goes into. You put the .308" bullet in the 30 cal hole, and put it in your caliper, and measure the ogive length.

I stole this picture off the web.

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#6021013 - 11/10/15 08:50 AM Re: Bullet seating [Re: ChadTRG42]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 20085
Loc: Wolfe City, TX
I didn't even know that existed. That is very cool!

Heck I could make that!
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#6021049 - 11/10/15 09:04 AM Re: Bullet seating [Re: DLALLDER]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 10495
Loc: Lewisville, TX
The hex nut is what I use for all my "internal" measurements for my ammo. The main problem you run into when someone gives you an ogive measurement, is you need to know what tool they used to get this measurement. There are several companies that make various ogive tools, and they will all give you various lengths.
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#6021073 - 11/10/15 09:19 AM Re: Bullet seating [Re: ChadTRG42]
Cleric Offline
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Registered: 03/11/12
Posts: 2779
Originally Posted By: ChadTRG42
Originally Posted By: Cleric
This may be a dumb question but is that long enough to measure overall length?


The hex nut is 1" long and has holes in it that the bullet goes into. You put the .308" bullet in the 30 cal hole, and put it in your caliper, and measure the ogive length.

I stole this picture off the web.




So I saw the picture on Sinclair and it had the stand and the gauge on it. I thought that was part of the unit. I see its just the nut.

I wish #1 had 6.8 as opposed to .25. I may have to order me one. I think those are better than the hornady design

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#6021080 - 11/10/15 09:23 AM Re: Bullet seating [Re: DLALLDER]
Judd Offline


Registered: 01/22/09
Posts: 11110
Loc: Sachse, TX
I like the Hornady because it actually attaches to the caliper. Like Chad says though...both will work.
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#6021087 - 11/10/15 09:26 AM Re: Bullet seating [Re: DLALLDER]
redchevy Offline
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Registered: 10/25/04
Posts: 25108
Loc: Texas
I have the hornady and have been happy. That said if I would have seen the nut I may have bought it instead, simpler design.
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