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Ultimate Pronghorn Rifle, opinions welcome....

 
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  #29  
Old 08-23-2005, 07:35 AM
 
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Re: Ultimate Pronghorn Rifle, opinions welcome....

I hope this post continues for another week or so .. because.. I'll show you not 1, but 2 unlitmate Goats Guns!!!

That's right boys the twins!!! Be patient and it will be worth it...

These 2 rifles were built for just this sorta thing!!

Remember when hunting Antelope you need... a reliable bullet, wind bucking ability, some what flat trajectory, and longer range capability...There is such a caliber.. but I don't think anyone has said it in this post yet.
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  #30  
Old 08-23-2005, 09:00 AM
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Re: Ultimate Pronghorn Rifle, opinions welcome....

Just playin with ya Kirby. [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/grin.gif[/img]

It is a heck of a nice rifle. My wife doesn't care if buy guns. Actually she said she thought you did a great job on my gun. You should see a pic of here standing next to it, it is nearly taller than her.

Now as for getting here into hunting and shooting, not a chance in hell. She HATES the cold and she can just barely muster up the courage to shoot a 22lr.

Take it easy,
Steve
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  #31  
Old 08-23-2005, 10:03 AM
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Re: Ultimate Pronghorn Rifle, opinions welcome....

Ric,

Interested to see what you have coming!!

Also interested to see how it compares to the 257 Allen Mag as far as portability, accuracy, ballistically and terminally. I think it would be very hard to outperform this rifle for use on pronghorns in open country spot and stalk hunting but I am sure you have a very good contender.

From the qualifying criteria you list for the ultimate pronghorn round, the 257 AM meets all your requirements but one, I will admit it is certainly not "Somewhat Flat shooting" [img]/ubbthreads/images/graemlins/grin.gif[/img] [img]/ubbthreads/images/graemlins/blush.gif[/img]!!! IT is about as flat as realistically possible at least comparing it to any extreme performance wildcat I have ever hear of. But I agree it does not qualify as a "Somewhat flat shooting" cartridge!!

Did I mention recoil of this rifle is about that of a 223 Rem in a varmint weight rifle [img]/ubbthreads/images/graemlins/grin.gif[/img]!! I was even suprised at this when I started doing the barrel break in. Even less then the heavier Extreme Sporters in 257 AM.

The reason, the brake works better at slowing the rearward movement of the lighter rifle.

Interested to see what you have in the works!!

Kirby Allen(50)
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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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  #32  
Old 08-23-2005, 10:27 AM
 
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Re: Ultimate Pronghorn Rifle, opinions welcome....

Kirbly...

Well it isn't a 1/4 caliber .. ;-)

I have no doubt the 257 AM is a very fine goat gun...

me personally I didn't want fire forming and super fast barrel wear... I also wanted factory ammo in a pinch if needed... just kinda my criteria for my rifle.. should I have a brain fart, forget my ammo and need to buy factory ammo I want a caliber that I can do that with.

after doing several Alnetope hunts over the years and given the ranges we take some of these antelope at I wanted somthing that bucks the Wyo wind really well without having to push the bullets so fast that my throat and barrel wear out to fast...

I think I have the perfect caliber for it...

However, I will say this.. if I was to limit my self to 300 yard shots it would be a different caliber.
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  #33  
Old 08-23-2005, 02:20 PM
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Re: Ultimate Pronghorn Rifle, opinions welcome....

Kirby, when is your pronghorn hunt. Just wondering when we should start getting excited about seeing some pics.

Thanks
Steve
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  #34  
Old 08-23-2005, 02:21 PM
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Re: Ultimate Pronghorn Rifle, opinions welcome....

I'll bet its a .284cal. 7mm WSM?
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  #35  
Old 08-23-2005, 02:24 PM
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Re: Ultimate Pronghorn Rifle, opinions welcome....

Ric,

I suppose it all depends on what the max range a person intends to take a shot at as to what round would be the best.

That said, the 156 gr ULD RBBT will exceed or match any commerical bullet on the market as far as ballistics is concerned, drop and winddrift. Compared to the 300 gr Sierra Mk in 338, it produces nearly identical drop values over 800 yards when driven to the same velocity.

The only reason I know this is because I have tested this bullet in my 257 Allen Mag at 3100 fps head to head with the 300 gr SMK in 338 out of my 338 Kahn loaded to nearly the same velocity(3075 fps).

Drop and drift testing were so nearly identical that the data did not produce a winner ballistically.

That said, this is a fireforming level load in the 257 AM. In the 338 Kahn, this is a full tilt load.

When the throttle is put down a bit we can drive the same BC bullet to 350 to 400 fps more velocity then the Kahn.

It was for this reason that I felt the 257 AM was the only chambering for my Ultimate pronghorn project rifle.

I have been breaking the barrel in today as I do other projects in the shop. It amazes me how the rifle simply quivers as it is fired, NO recoil at all!! I really like those Hollands on light barreled rifles, especially with a big case.

As far as throat and bore life, I admit they will be limited to some degree in this chambering, no way around that. STill this is a big game rifle, designed solely for this purpose and in this role, it will offer plenty of accurate barrel and throat life for most hunters to use if for well over ten seasons.

SO for their design application, I feel throat life is a non issue in a dedicated big game rifle, simply because they will not be used for high volume shooting.

Anyway, look forward to your two project rifles and seeing what they are!!!

Good Shooting!!

Kirby Allen
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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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