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The Raptors are ready!!!!

 
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  #22  
Old 05-18-2010, 10:46 AM
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Re: The Raptors are ready!!!!

To pair with the new berger 338 bullet, what is the largest or optimum 338 cartridge for the raptor?

Nice looking hardware. Does it have a raceway for bolt alignment and a groove in one of the lugs?

L_L
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  #23  
Old 05-18-2010, 05:54 PM
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Re: The Raptors are ready!!!!

The weight of the complete Raptor is 35 oz so its pretty heavy but thats by design. For comparision, the Nesika Model M is 31 oz and Borden Timberline comes in at 28.5 oz.

No way around it, you need steel for what I wanted and that adds a bit of weight but in my opinion, for what the receiver is designed for its well worth it.
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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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  #24  
Old 05-18-2010, 07:28 PM
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Re: The Raptors are ready!!!!

I hope this isn't to dumb a question. I am very interested in the Raptor for a dedicated long range rifle build. Trying to decided between 3 calibers - 338 rum, Edge or Lapua. If I get the bolt for the Rum/Edge and later decide to do the Lapua is it just a matter of opening up the bolt face?
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  #25  
Old 05-18-2010, 09:55 PM
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Re: The Raptors are ready!!!!

MN Hunter,

Its not quite that easy with the Raptor as its not that easy with most of the custom receivers because of the extractor. In the case of the Raptor, it has a pinned in M-16 style extractor. The bolt is machined so the extractor is positioned correctly for the specific rim size used in that receiver.

So if you open up the bolt face, the extractor would be to deep and would stub on the case head. Its possible the extractor could be modified but that would also weaken it.

If your interested in the Edge but think you may want to step up later to something bigger, why not just go with the 338 Lapua, exactly the same performance as the Edge in the factory 338 Lapua offering but if you decide to later, you can step up to the improved versions such as my 338 Allen Xpress and get another 125 to 150 fps with same bullet weights. That is what I would recommend.

That said, I have built many rifles on receivers with lapua bolt faces that worked flawlessly with RUM class chamberings even though the bolt face is larger then it needs to be. In fact I just shipped a rifle last week for a customer that had ordered a Nesika Bay model M with Lapua bolt face but he changed his mind to the Edge and it works perfectly well. If you did not put the calipers to the bolt face diameter, you would never know the receiver was not made for the smaller rim diameter.
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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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  #26  
Old 05-18-2010, 10:17 PM
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Re: The Raptors are ready!!!!

Kirby,
Since the the .338 AM won't work with this what would be the best performing cartridge that will work? .338 AX or is there something better in that .338 caliber that will be better?
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  #27  
Old 05-18-2010, 11:05 PM
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Re: The Raptors are ready!!!!

The 338 AX is about the highest performing round that will fit in the Raptor. Its not the largest capacity, that would be the 338-378 or 338 Kahn which have around 10 grains more capacity then the AX.

That said, the Lapua case will handle chamber pressures much higher then the Wby brass which the other two rounds are based on and as such will match or exceed these larger rounds with same bullet weights in same length barrels. I am not talking about loading the 338 AX to dangerous pressures, I am talking 68,000 psi which is a comfortable load in the Lapua case but in the Wby or Norma case it will loose primer pockets quickly.

Depending on barrel length you would see just shy of 3000 fps up to just off 3100 fps with a 300 gr SMK class bullet. Again, without jumping up to the 408 class wildcats, its about the top of the pile for 338 magnum performance. Plus, you have the option to shoot standard 338 Lapua ammo through your rifle and that generally shoots to 1/2 moa accuracy as well, just with a drop in performance.

Any of the improved versions of the 338 Lapua would get this same level of performance.

Highest performance is not always the BEST choice however, depends on how you will be using the rifle and you need to consider the reloading aspect of a wildcat and if it fits with what you are comfortable with and want to do. The 338 AX is certainly not hard to load for, just costs a bit more if you want fully formed brass.

To sweaten the deal possibly, I am working on getting correct headstamped brass for the 338 Allen Xpress as well made from Jamison. I have tested their 338 Lapua brass and it will handle the same loads I am using with the lapua brand brass and accuracy and consistancy has been very impressive so far. Not a done deal but pretty close.

Hope this helps.
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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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  #28  
Old 05-19-2010, 04:58 AM
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Join Date: Nov 2009
Posts: 16
Re: The Raptors are ready!!!!

Kirby,
I wish to add my compliments on your gorgeous work.
Maybe in the next century the world will be changed and even the italian shooters will be lucky enough to get such kind of masterpieces directly from the USA with no need of import licence !!!
MAF
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