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#7006852 - 12/22/17 08:04 AM H1000 in 7 Rem Mag
DStroud Offline
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Was going to work up a load for Hunting with a 7 RM with 175 ELD-M.
Data shows max varies over 7 grains which is not that unusual but not normally that great of variance.
I shot one round with 68.5 gr and speed was 2953 which seems fast for supposedly 3 gr under max??
Looked at QuickLoad and that is moderate load....
Just wondering where to even start a ladder confused2
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#7007363 - 12/22/17 12:16 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
redchevy Offline
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Sounds interesting, keep us posted on how it goes.

Velocity is suppose to be an indicator of pressure, do your sources of load date agree on speed just differ on the quantity of powder to get there?
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#7007483 - 12/22/17 01:24 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
DStroud Offline
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The load I tried was 3gr under max in one Manual but was running 100 fps faster than the average speed of most manuals.
I think it is because itís a custom chamber and the throat is not as long as some factory rifles but just find it a little unusual that QuickLoad has the bullet and I modified the seating depth and it shows a 100 fps slower as well.
Pulled down all the rounds will start lower and give it another go??
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"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

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#7007498 - 12/22/17 01:37 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
FiremanJG Online   content
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My 7 Rem Mag

"0" free-bore
180 gr VLD-Hunting
69.2 gr of H-Retumbo
CCI 250
Rem brass
26" 1:8.5

MV 2950 fps.

I was up to 71.2 gr of Retumbo = 3030 fps MV, but it started showing significant pressure, late in the game. A shot-in barrel is all I can figure.

Bottom line, STAND ON THE THROTTLE!
peep
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#7007559 - 12/22/17 02:20 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
68A Online   content
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Watch for pressure signs but I agree with JG. Hammer down.

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#7008373 - 12/23/17 05:07 AM Re: H1000 in 7 Rem Mag [Re: DStroud]
Smokey Bear Offline
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My manuals show around 2850 fps max as well. Like yours they list a broad range of powder using H-1000 to get there. Depending barrel length, you are at or slightly over max. My current 7 RM seems to track the data in the Nosler Manual pretty close. It lists 65.5 as a max charge of H-1000 pushing a 175 at 2850 out of a 24" barrel. So it would seem you are tracking pretty close to their data as well.


Edited by Smokey Bear (12/23/17 05:11 AM)
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#7008375 - 12/23/17 05:22 AM Re: H1000 in 7 Rem Mag [Re: DStroud]
FiremanJG Online   content
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^^That's very conservative, and their max would be where I would start. Berger will do the same thing to you.

Just like anything else, ease up until it shoots well. You might not even find pressure. I expect a 7 Rem Mag to shoot at, or near compression.
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#7009164 - 12/23/17 05:51 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
DStroud Offline
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Found the issue..... PPU brass. Way lower internal volume was running pressures and speeds up. Especially with 175 gr bullet taking powder space with short throat it was a double whammy. Why they say always work up as you never know.
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"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

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#7009989 - 12/24/17 11:46 AM Re: H1000 in 7 Rem Mag [Re: FiremanJG]
Smokey Bear Offline
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Originally Posted By: FiremanJG
^^That's very conservative, and their max would be where I would start. Berger will do the same thing to you.

Just like anything else, ease up until it shoots well. You might not even find pressure. I expect a 7 Rem Mag to shoot at, or near compression.


Yeah, published data has gotten more conservative than when I started loading in the '70's. I have wondered on numerous occasions if it is due to more sophisticated pressure reading equipment or lawyer proofing. The
7 mag is a caliber I am more cautious with due to it being more prone to pressure spikes than some.
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#7009994 - 12/24/17 11:51 AM Re: H1000 in 7 Rem Mag [Re: DStroud]
scdogman Online   content
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Registered: 11/12/10
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Dstroud,

What is the twist on your 7mm reg?

Also have you shot the 175 eld-x in the 28 Nosler? Is so what speeds and how did it shoot?

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#7010281 - 12/24/17 03:58 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
DStroud Offline
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That particular 7mm is a 1/9 twist

The 28 Nolser has a 1/8 and no have not tried the 175 ELD-x but have tried the 180ELD-M. Not sure how well they really shoot because twice on the third shot of a string the bullet never made it to the target..... so I quit messing with them.


Edited by DStroud (12/24/17 03:58 PM)
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"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

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#7010381 - 12/24/17 05:24 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
scdogman Online   content
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Thanks. The 180s shoot at 3090 FPS for me in a 8t 28 Nosler. I saw where someone reported the same thing on another site with the 180s at higher speeds as well

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#7010426 - 12/24/17 06:00 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
FiremanJG Online   content
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Originally Posted By: DStroud
That particular 7mm is a 1/9 twist

The 28 Nolser has a 1/8 and no have not tried the 175 ELD-x but have tried the 180ELD-M. Not sure how well they really shoot because twice on the third shot of a string the bullet never made it to the target..... so I quit messing with them.


So on a warm barrel, it was spinning the jacket off?
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#7010478 - 12/24/17 06:59 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
DStroud Offline
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I guess so ..... but it was running around 3250fps from a 28.5 inch barrel.
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"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."

Jack O'Connor 1963

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#7010520 - 12/24/17 07:44 PM Re: H1000 in 7 Rem Mag [Re: DStroud]
FiremanJG Online   content
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3250fps MV
28.5 inch barrel.
1:8 twist
180 ELD-M

=jacket spun off

nidea Idea
195 gr Berger EOL
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