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Sabot ?

 
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  #1  
Old 06-07-2011, 11:38 AM
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Sabot ?

Is anyone playing around with sabot bullets. The only ones I ever played with were the Accelerators, and they left a little to be desired. I think but don't know for sure that the accuracy problem was and is not having the correct rifleing twist rate for the bullet. seriously thinking of .458 barrels with .338 bullets.
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  #2  
Old 06-07-2011, 12:25 PM
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Re: Sabot ?

IMO, you have several problems effecting accuracy.

1) bullet to sabot runout;

2) sabot to bore runout;

3) bullet sabot consistent separation.

I think that if you can solve this and can find a sabot friendly load that achieving sub MOA is very doable.

I have a smokeless muzzleloader and shoot a variety of bullets but mistakenly went with a 14 twist .458 barrel and that hampers my bullet selection.

edge.
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  #3  
Old 06-07-2011, 12:44 PM
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Re: Sabot ?

They seem to work well as a band-aid in certain applications such as overcoming deficiencies of muzzleloaders and allowing one to shoot a much smaller/lighter bullet in a hunting rifle.

But in practice, I doubt it buys you anything for LRH.

Without some kind of R&D breakthrough, I would expect you to lose long range accuracy and consistency compared to a properly engineered 338 rifle.

I've actually never seen the 30 cal/22 call sabots come close to the accuracy of a well-built 222, 223, 22-250. But, my experience is somewhat limitted.

Nonetheless, it's a great concept and I'd be curious to know if anybody's pursuing it.

-- richard
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  #4  
Old 06-07-2011, 01:17 PM
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Re: Sabot ?

There are many as mentioned above problems with Sabot bullets. I do not have a good opinion of the ones I have shot. Looking at it as a play around project it has some interesting possibilities. ( safety noted ) Without the introduction of some sort of smart powder we have already taken velocities to their max. A way simplified formula for velocity is pressure, time and surface area. Pressure is at an end, time decreases with velocity, and we end up with surface area ( diameter for weight ) as the current last place to go for higher velocity. I know the military uses them in very accurate Kinetic loads ( the science television channel). At the very least its an interesting topic if no one is currently playing with them.
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  #5  
Old 06-07-2011, 01:25 PM
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Re: Sabot ?

I would have to agree.

You do need to shoot the weight of the sabot which will add about 30 - 35 grains to your 338 bullet.
When I shot the 250 grain 338 Accubond the total weight was 285 grains.

If you get it to shoot, you may be able to get velocity at a lower pressure since the bore is so large.

edge.
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  #6  
Old 06-07-2011, 01:40 PM
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Re: Sabot ?

Quote:
Originally Posted by edge View Post
[...]When I shot the 250 grain 338 Accubond the total weight was 285 grains.[...]
So, you tried this in a high power application? Or, muzzle loader???
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  #7  
Old 06-07-2011, 01:59 PM
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Re: Sabot ?

Quote:
Originally Posted by rscott5028 View Post
So, you tried this in a high power application? Or, muzzle loader???
High Power yes, but it is a muzzleloader and not a cartridge rifle
250 grain Accubond at 3,000 fps.

I have shot a break open 45-70 cartridge with a pre rifled sabot but at lower velocity and only in the 1 moa range. I had to load it by feel, partially load it and rotate the cartridge until the rifling caught, then the cartridge was fully inserted.

edge.
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