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338 Thunder II

 
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  #1  
Old 07-10-2007, 09:54 PM
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338 Thunder II

A good friend of mine from Wyoming just built the second 338 thunder and we got out to test it finally.

He built this gun as a switchstock rig for benchrest and for hunting elk and everything else in Wyoming. He used my gun last fall to kill an antelope at 1086 yards and just had to have one.

I lent him my reamer and dies and we found some interesting things in load development. Despite having a totally different lot of powder, his gun liked the same load and shot nearly identical speeds. This cartridge has something to it as we have now fired 6 different loads in his gun with the largest standard deviation being 12. Most of the other loads are in the 2 or 3 fps range!! My gun was like this too. I believe it is the 40 degree shoulder that is doing this and the right powders.

Anyhow, back to his gun. It is built on a Stiller Predator action, Lilja barrel, Mcmillan stock, Jewell trigger, Leupold scope, and Vias muzzle brake. Smithed by a guy here in Utah.

Of the loads we tried in our one and only range session, the biggest group went .75" and the smallest being .272". THIS GUN SHOOTS!

Powder was RL22 and the bullet is a 225 grain Nosler Accubond (yes we realize the 300 grain MK has a higher bc as does the 250 grain Scenar but we want this gun to actually KILL something) and the primer was a Fed 215 gm.

With any luck, this gun will kill a heap of game this year. My friend has two cow elk tags, one bull elk tag, three antelope tags, one deer tag, and he is a fox hunter the rest of the year for bounty.

Here is some pics of the hardware:


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  #2  
Old 07-11-2007, 03:48 AM
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Re: 338 Thunder II

GG,

That's awesome! That's nice! Congratulate him for me!

I do remember him! [img]/ubbthreads/images/graemlins/smile.gif[/img]

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Old 07-11-2007, 05:50 AM
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Re: 338 Thunder II

Sooo... what it the 338 Thunder?????

Thanx
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Old 07-11-2007, 06:43 AM
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Re: 338 Thunder II



Improved 338 RUM...............
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Old 07-11-2007, 09:33 AM
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Re: 338 Thunder II

GG,

Nice looking rig, What length and diameter barrel is that on the rifle and how did he have that Stiller bedded. Looks like a 1.250" straight cylinder pipe to me.

You ever consider trying the new 265 gr AL RBBT bullets from Wildcat Bullets. I have been testing them alot lately and have been really impressed so far for prototype bullets.

As far as BC, lets just say they appear to be offering around a 0.100 jump over the 300 gr SMK AT LEAST!!!

With the aluminum tip for expansion and the very heavy 30 thou thick jacket, I would think they would be about perfect for your Thunder class of round.

Kirby Allen(50)
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  #6  
Old 07-11-2007, 10:24 AM
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Re: 338 Thunder II

"Powder was RL22 and the bullet is a 225 grain Nosler Accubond (yes we realize the 300 grain MK has a higher bc as does the 250 grain Scenar but we want this gun to actually KILL something) and the primer was a Fed 215 gm."


Why do you say that? Have you had bad luck using the 300g SMK?
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Old 07-11-2007, 01:06 PM
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Re: 338 Thunder II

i'll give Ric a call! [img]/ubbthreads/images/graemlins/grin.gif[/img]
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