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300 Tejas

 
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  #8  
Old 04-09-2010, 07:46 PM
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Join Date: Sep 2008
Location: N.Y. (Upstate)
Posts: 228
Re: 300 Tejas

Quote:
Originally Posted by MN Hunter View Post
Ryan55555

There is a member here that I had the pleasure of hunting with last fall that I believe has a rifle in this caliber. The more I think about it - it may be a 338. Tejas. You can try shooting him a PM.

7STDUBBERU

Good memory buddy,

I do have 338 Tejas, it is a 300 RUM necked up and the shoulder blown out to 50*. This rifle is also built by Brad Stairs but this is marked Performance Guns. Brad is a good guy and gave of his time freely when I called him for his opinion on this rig prior to buying it from it's original owner. If you would like his phone number PM me and I will forward it to you.

Getting 2880FPS with 300 gr SMK's with exceptional accuracy. This rifle is a shooter.

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  #9  
Old 04-09-2010, 08:00 PM
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Join Date: Feb 2009
Location: Aberdeen, SD
Posts: 516
Re: 300 Tejas

Nice picture
That rifle looks as sweet as I remember it.
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  #10  
Old 04-09-2010, 08:11 PM
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Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,796
Re: 300 Tejas

I have played with a couple round with shoulder angles over 40 degrees and in every case ran into problems when the brass got a few firings on them with high pressure loads. The shoulders would collapse when they needed to be bumped to set the shoulder back very slightly for proper chambering.

With moderate loads this was not as significant but it did still occur but to a lesser degree.

One was a 7mm on the 8mm Rem Mag case with a 50 degree shoulder and that rifle has some serious issues with pressure variations. You likely would never see this with a 338 cal and likely not with a 30 cal but I simply do not like a shoulder that steep

It sounds like the 338 Tejas is identical in performance with the 338 Edge so personally I would not want to deal with the issues of the 50 degree shoulder for no real improvement in performance. The 338 Edge will get you 2850 fps to 2900 fps with the 300 gr SMK and there is no fireforming needed.

If the 300 is the same as the 338 but necked down to 30 cal, it would seem to reason that it would be basically the same performance as the 300 RUM.

Not saying they are not good rounds and I am sure the rifles are very good quality and good shooters but I just do not see alot of advantage improving a case that is already pretty well improved in design other then a sharper shoulder. This is why the performance increase is not significant over the parent case.

Just my opinion, not trying to flame anyone, just saying what I have found using cases with shoulder sharper then 40 degrees.
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #11  
Old 04-09-2010, 09:23 PM
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Join Date: Mar 2005
Location: corpus christi,tx
Posts: 816
Re: 300 Tejas

Quote:
Originally Posted by Fiftydriver View Post
I have played with a couple round with shoulder angles over 40 degrees and in every case ran into problems when the brass got a few firings on them with high pressure loads. The shoulders would collapse when they needed to be bumped to set the shoulder back very slightly for proper chambering.

With moderate loads this was not as significant but it did still occur but to a lesser degree.

One was a 7mm on the 8mm Rem Mag case with a 50 degree shoulder and that rifle has some serious issues with pressure variations. You likely would never see this with a 338 cal and likely not with a 30 cal but I simply do not like a shoulder that steep

It sounds like the 338 Tejas is identical in performance with the 338 Edge so personally I would not want to deal with the issues of the 50 degree shoulder for no real improvement in performance. The 338 Edge will get you 2850 fps to 2900 fps with the 300 gr SMK and there is no fireforming needed.

If the 300 is the same as the 338 but necked down to 30 cal, it would seem to reason that it would be basically the same performance as the 300 RUM.

Not saying they are not good rounds and I am sure the rifles are very good quality and good shooters but I just do not see alot of advantage improving a case that is already pretty well improved in design other then a sharper shoulder. This is why the performance increase is not significant over the parent case.

Just my opinion, not trying to flame anyone, just saying what I have found using cases with shoulder sharper then 40 degrees.
My 338 edge you built is shooting a 300 smk @ 2950 with 93.5 of h1000 with 32" barrel
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  #12  
Old 04-09-2010, 11:03 PM
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Join Date: Aug 2008
Location: washington utah
Posts: 177
Re: 300 Tejas

my 375 tejas was chronographed on a shooting chrony
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  #13  
Old 04-09-2010, 11:05 PM
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Join Date: Jun 2004
Location: Fort Shaw, Montana
Posts: 6,796
Re: 300 Tejas

338 Bruce,

So your saying your getting 3200 fps with a RUM based wildcat with a 300 gr bullet, or is the 375 version based on a larger parent case?
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #14  
Old 04-09-2010, 11:08 PM
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Join Date: Aug 2008
Location: washington utah
Posts: 177
Re: 300 Tejas

it is a 375 rum case based wildcat
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