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7mm Remington Ultra Mag

 
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  #36  
Old 12-08-2011, 10:42 PM
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Re: 7mm Remington Ultra Mag

Quote:
Originally Posted by WildRose View Post
7mm STW is the answer vs loading the rum down.
In your opinion W.R., would I be looking at nearly as short of a barrel life with near max loads in the STW as near moderate loads in the RUM? I know I'mkinda picking the fly dung out of the pepper here....lol. But in a way, isn't that what we're all doing in long range equipment?



Quote:
Originally Posted by Airgunner7 View Post
I average .75 ish even with some bad primers( I think) . Almost all groups are below 1 moa. Stock Sendero 26"

Went out to a local mile shoot and rang the gong at 1804Y...even with some problems with my reloads.
Wow....nice going on the gong! Is that .75-ish with a reduced load or near max loads?
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  #37  
Old 12-09-2011, 12:10 AM
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Re: 7mm Remington Ultra Mag

Quote:
Originally Posted by WildRose View Post
7mm STW is the answer vs loading the rum down.
A STW is hardly a loaded down Rum. Maybe a 7RM or 7WSM or .280 Rem.. Thats almost an insult to the STW.
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  #38  
Old 12-09-2011, 01:01 AM
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Re: 7mm Remington Ultra Mag

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Originally Posted by Sako7STW View Post
A STW is hardly a loaded down Rum. Maybe a 7RM or 7WSM or .280 Rem.. Thats almost an insult to the STW.
No it isn't. Smaller case, less powder, lower recoil, and out to 1000yds every bit as deadly as the Rum on deer sized and smaller game/varmints.
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  #39  
Old 12-09-2011, 01:13 AM
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Re: 7mm Remington Ultra Mag

Quote:
Originally Posted by theflyonthewall View Post
In your opinion W.R., would I be looking at nearly as short of a barrel life with near max loads in the STW as near moderate loads in the RUM? I know I'mkinda picking the fly dung out of the pepper here....lol. But in a way, isn't that what we're all doing in long range equipment?





Wow....nice going on the gong! Is that .75-ish with a reduced load or near max loads?
When you compare similar bullet weights the powder charge is significantly smaller.

Looking at 162gr bullets STW load with H-1000=78.2gr=3150fps vs Rum 87.3gr=3100fps.

That's a much more efficient use of powder for nearly the same result with a significantly reduced blast and lower recoil.

It's also going to tend to produce better barrel life.
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  #40  
Old 12-10-2011, 11:44 AM
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Re: 7mm Remington Ultra Mag

This is really splitting hairs as we are talking small margins here. I don't think anyone can say the 7 rum is not the ultimate hot rod here...it wastes powder like funny car burns fuel. I would love a stw though, as it might last a tick longer and use less powder. Pick your poison

here are my log #'s for a 160 Accubond
Retumbo CCI Virgin Nosler Brass
90.0G 3234,3240, 3237
92.0G 3305, 3310, 3300
94.0G 3398,3389, 3413 getting sticky
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  #41  
Old 12-10-2011, 02:17 PM
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Re: 7mm Remington Ultra Mag

Quote:
Originally Posted by WildRose View Post
When you compare similar bullet weights the powder charge is significantly smaller.

Looking at 162gr bullets STW load with H-1000=78.2gr=3150fps vs Rum 87.3gr=3100fps.

That's a much more efficient use of powder for nearly the same result with a significantly reduced blast and lower recoil.

It's also going to tend to produce better barrel life.
Sure would be nice if some brainiac would work out a realistic formula for case volume vs. charge weight vs. barrel life. I know, there's considerably more to consider in making such a formula. But it sure would be nice if it could be done.

And yes WR, the lesser amounts of powder in the STW would definitely equate to longer barrel life if all other things were kept equal between them.


Quote:
Originally Posted by Airgunner7 View Post
This is really splitting hairs as we are talking small margins here. I don't think anyone can say the 7 rum is not the ultimate hot rod here...it wastes powder like funny car burns fuel. I would love a stw though, as it might last a tick longer and use less powder. Pick your poison

here are my log #'s for a 160 Accubond
Retumbo CCI Virgin Nosler Brass
90.0G 3234,3240, 3237
92.0G 3305, 3310, 3300
94.0G 3398,3389, 3413 getting sticky
I LOVE that funny car analogy!...lol. So true.
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  #42  
Old 04-01-2012, 11:08 PM
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Re: 7mm Remington Ultra Mag

I have really enjoyed reading the posts on this forum!

I must say however as an owner of many long range rifles, I have been drawn back time after time to the ballistics and the performance of my 7 Remington Ultra Mag. I have had my action re-chambered to a 7 Tejas Ultra Mag. This squares the shoulder and allowes for around 5% more powder. However, I am back to what works best with the least amount of pressure.
I believe anyone who does not shoot the 180 Berger VLD in this caliber is absolutely crazy. Of course, I have a custom 26" PacNor barrel, but it should not matter. I am loading it at 3.670 O.A.L. or 2.970 on the ogive to make sure it fits in the magazine. I have been lucky to not have to seat into the lands as my accuracy is 7/16 or better at 100 yds. and sub moa at 1000 yds!!!
load data
93.5 grains of Retumbo (3190 fps)
180 Berger VLD Hunting Bullets
Federal 215 Match PRimers
Remington Brass
Hornady custom competition dies(reamed for the Tejas)
.001 Runout(concentricity)


Do not waste your time with any other powder as they are way to tempeture sensitive. I tried US869, H1000, and Re 25, non of them produce the speed and accuracy of Retumbo!!!
Make sure to sight your gun in at a minimum of 500 Yds and work your drop charts from the longer ranges. I have used both the turrets and nightforce ballistic software. They are both sufficient to make kills at extreme long range. I would also highly recommend a Co-Sign indicator for elevation shots.

This set up in my opinion is proved to be the best long range set up period!!!

I know there are many calibers out there. I also shoot a 300 RUM, 30-378 Weatherby and 25-06 Rem. Love them all, but the first gun I grab when going big game hunting is the 7 Tejas! My best friend just dropped his cow elk at 1240 yds

Good Luck, hope this helps...
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