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    System Insight

    Re: System Insight <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">My active development on projectiles began about the time of our e-mail correspondence, during the summer of 2008, if my memory serves me correctly.</div></div> That is how I...
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    System Insight

    Re: System Insight Hi Noel, I would like to clarify the time lines here. Not that it is that important but clarity is always a good thing. Speaking to Anthony you said: <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">I could also quote earlier...
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    .338/408 CT & GSC bullet

    Re: .338/408 CT & GSC bullet Hi Noel, GSC did the original prototypes of the bullet used by Marsti. The bullets he actually used were manufactured by KJG and were identical. The reason given by KJG why they supplied the bullets, was ostensibly that we could not produce them at the time...
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    .338/408 CT & GSC bullet

    Re: .338/408 CT & GSC bullet <div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">The GS is essentially a tangent ogive</div></div> Definitely not a tangent ogive. An easy 2850FPS from a 28" barrel in a Lapua Magnum and, if memory serves, Tom Marsti...
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    Bullet selection

    Re: Bullet selection I am not aware of anyone going that fast with the 295gr 338 SP. With monos, finding accuracy is generally easier than with jacketed bullets as there is no axial distortion of the bullet under pressure and acceleration. Fewer variables, less vibration - all helps.
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    .375" on a CheyTac

    Re: .375" on a CheyTac They will be on the USA price list early next week around US$85 for 50 plus USPS flat rate. The catalog number is 375355SP173. It will be a special order item, as most SPs are, and we are in process with the next order for Northern Light Trading. We ship to him about...
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    Bullet selection

    Re: Bullet selection We will get the 267gr .338 SP data up on our site during next week but here is some of it. Twist - S/F 7.5 --- 2 8 ----- 1.76 8.5 --- 1.56 9 ----- 1.39 9.5 --- 1.25 10 ---- 1.13 10.5 -- 1.02 M/S - FPS --- BC 914 - 3000 - 1.007 640 - 2100 - 0.923 366 - 1200 - 0.681...
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    .375" on a CheyTac

    Re: .375" on a CheyTac krlemas, The stability factor at 3000fps mv with a 1:11" is 1.19. That would be on to the limit for the combination but it will work. With a 1:10" twist the stability factor is 1.45 at 3000fps mv. We attended the Aim Show in JHB this past weekend and left on the 1st...
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    .375" on a CheyTac

    Re: .375" on a CheyTac So far we are on track for completion mid April. The first run of the 1:8" will probably be 1st week in May. We are trying to figure how many of the 355gr SPs to do as we will run them back to back with the 1:8" SPs. It will depend on the demand plus some for stock...
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    .375" on a CheyTac

    Re: .375" on a CheyTac Hi Noel, It is to give the best accuracy in production barrels. I experimented with a variety of configurations during 1996 and found the best accuracy with some bore/shaft contact. During 2005 I revisited that research with additional information and experience and...
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    .375" on a CheyTac

    Re: .375" on a CheyTac The 1:8" bullet is still in development with very little fixed but the 1:10" SP is 355gr. Stability from a 1:10" is 1.4 at the muzzle and from a 1:10.5 it is 1.3. Tractability will be good all the way to subsonic. Calculated BC is around 1 at 3000fps, dropping to mid...
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    .375" on a CheyTac

    Re: .375" on a CheyTac The 375291SP is designed for a standard 1:12" twist (375H&H, 378 Weatherby etc.) Due to the change in firearms laws in SA, it has become an advantage to be a member of a club to avoid hassles with licensing rifles. This has prompted clubs to "formalise" a new format...
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