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#6388172 - 07/30/16 10:27 AM 7mm Rem mag OAL questions
Blanco Offline
Tracker

Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
I have a Weatherby Vanguard 7Rem mag
Starting to work up some loads, and I figure I would check length with my Hormady LnL OAL gauge. I am loading a Speer spire flat base soft tip 145 gr. My max OAL ...and I checked it twice was 3.250 . This is pretty significantly less than the 3.29 the Lyman manual lists. SO... What now? I can live with that, but is this something to worry about?
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#6388175 - 07/30/16 10:34 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
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Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
Speer.1629 is the bullet
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#6388185 - 07/30/16 10:45 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
JJH Offline
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Registered: 10/03/06
Posts: 3577
Loc: Katy
How did you arrive at the seating depth for the 145 Speer?

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#6388215 - 07/30/16 11:29 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
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Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
The 3.250 measurement was with the LNL gauge with the Speer 145 in the Hornadymodified case.
The 3.29 measurement is from the Lyman manual listed as Max OAL
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#6388229 - 07/30/16 11:43 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
JJH Offline
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Registered: 10/03/06
Posts: 3577
Loc: Katy
sorry. I asked the question poorly. What made you seat the bullet to that length. Is that as far out as you can seat it without it contacting the rifling?

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#6388234 - 07/30/16 11:48 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 21736
Loc: Wolfe City, TX
Forget what the books say on Max OAL. That is for SAAMI, not handloaders. Load your bullet to the relation of the lands for your rifle.
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#6388288 - 07/30/16 12:47 PM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
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Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
Yes 3.25 is the farthest the bullet can be seated before making contact. Thanks Fireman that is what I suspected. I wonder what factory made ammo.is seated out to? I think I have a box of Remmi I will measure...
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#6388359 - 07/30/16 02:09 PM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
Tracker

Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
On second thought...2 bullets, same.cal with different ogive would have different max OAL ? Hmmmm
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#6388984 - 07/31/16 03:58 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
Tracker

Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
I checked the new box of Remington ammo I have. The profile of the core lokt bullet is much more like a Berger. OAL 3.2 But with that profile there should be significant jump to the rifiling.
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#6388993 - 07/31/16 06:15 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
mikei Offline
Veteran Tracker

Registered: 11/16/14
Posts: 2041
As long as you don't start out with your initial loads "jamming the lands," and your cartridges fit and feed through your magazines, you should not have to worry about OAL. If you want to load them out to reduce the jump, do it very carefully, in small increments, and check for any signs of pressure.

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#6389021 - 07/31/16 07:32 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
DStroud Online   content
Pro Tracker

Registered: 11/02/11
Posts: 1582
Loc: Waco
I checked the Speer manual with that bullet and they show 3.280 which seems unusual that two manuals show OAL longer than your SAAMI chamber. I would triple check your measurement just to be sure and load accordingly. Also since you are seating deeper most definitely do not start at Max!

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#6389026 - 07/31/16 07:42 AM Re: 7mm Rem mag OAL questions [Re: Blanco]
Blanco Offline
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Registered: 12/29/10
Posts: 916
Loc: Ft.Worth
I think I will move this to the reloading section
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