168 grain Sierra Tipped Match King
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- stokesrj
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168 grain Sierra Tipped Match King
(Cartridge) 308 Winchester
(Brand of bullet) Sierra
(Weight of bullet) 168 grains
(Brand of brass) Federal
(Type of powder) IMR8208XBR
(Grains of powder) 43.5 grains
(Brand, and type of primer) Federal GM210M
(COAL) 2.830"
(CBTO) 2.124"
(FPS/MPS) 2659 FPS Average, 17 Extreme Spread, 9.5 SD
(Rifle) Blaser R8
(Barrel Length) 16.5"
(Scope) Swarovski Z8i 1.7-13.3X42
(Weather conditions & temp) light ready wind 4-5 MPH,
(Accuracy @ 100 yards/meters) Sub 1/2 MOA
(Notes) This load is optimized for a short barrel yet still provide high velocity. The Black Hills loading of this bullet is listed as 2647 fps from a 24" barrel. The Hodgdon load data list max at 43 grains so this is over book max but is safe in my rifle with no signs of high pressure. Cases fired with this load are good for at least six loadings.
(Brand of bullet) Sierra
(Weight of bullet) 168 grains
(Brand of brass) Federal
(Type of powder) IMR8208XBR
(Grains of powder) 43.5 grains
(Brand, and type of primer) Federal GM210M
(COAL) 2.830"
(CBTO) 2.124"
(FPS/MPS) 2659 FPS Average, 17 Extreme Spread, 9.5 SD
(Rifle) Blaser R8
(Barrel Length) 16.5"
(Scope) Swarovski Z8i 1.7-13.3X42
(Weather conditions & temp) light ready wind 4-5 MPH,
(Accuracy @ 100 yards/meters) Sub 1/2 MOA
(Notes) This load is optimized for a short barrel yet still provide high velocity. The Black Hills loading of this bullet is listed as 2647 fps from a 24" barrel. The Hodgdon load data list max at 43 grains so this is over book max but is safe in my rifle with no signs of high pressure. Cases fired with this load are good for at least six loadings.
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Robert J Stokes
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Re: 168 grain Sierra Tipped Match King
Wow, great velocity from a 16.5 inch barrel.
And accurate, might work well in your 308 Stutzen...
And accurate, might work well in your 308 Stutzen...
Life is too short to hunt with an ugly dog.
Hunt with a German Shorthaired Pointer.
Hunt with a German Shorthaired Pointer.
- Joe338ST
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Re: 168 grain Sierra Tipped Match King
That's good shooting Bob with a good load to boot! Muzzle braked????
Joe
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
- stokesrj
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Re: 168 grain Sierra Tipped Match King
Well I guess you could say it is braked, it has an internal brake, inside the Thunder Beast Ultra 7 silencer. It is very pleasant to shoot with the silencer attached, both recoil and muzzle blast are handled well. I have shot it with the silencer removed but the brake still attached, it is quite obnoxious that way. You definitely would not want to use it in the field that way. There are some pics in this thread about the rifle. viewtopic.php?f=34&t=15876&hilit=short+ ... 08#p180474
Robert J Stokes
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Re: 168 grain Sierra Tipped Match King
Now that is a nice set up. Pitty we cannot go that way in Oz....stokesrj wrote: ↑Thu Dec 27, 2018 5:57 pmWell I guess you could say it is braked, it has an internal brake, inside the Thunder Beast Ultra 7 silencer. It is very pleasant to shoot with the silencer attached, both recoil and muzzle blast are handled well. I have shot it with the silencer removed but the brake still attached, it is quite obnoxious that way. You definitely would not want to use it in the field that way. There are some pics in this thread about the rifle. viewtopic.php?f=34&t=15876&hilit=short+ ... 08#p180474
Joe
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
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Re: 168 grain Sierra Tipped Match King
I'm surprised by the speed, I'm getting 2700fps from a 168gn A-max with 43gn of the same powder.
I might work up that extra 1/2 grain and see what it does from a 22" barrel.
I might work up that extra 1/2 grain and see what it does from a 22" barrel.
I'm soft and I don't care.
- stokesrj
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Re: 168 grain Sierra Tipped Match King
That is precisely why I picked the .308 as my caliber for short barrel applications. It does really well compared to other calibers in short barreled applications. I did a ladder test with this barrel before it was shortened and after cutting so you can see that 43.0 grains of IMR8208 XBR got 2702FPS before it was shortened. For reasons I can't fully explain I am getting a bit higher velocities here in Arizona than I was in Florida, not much but about 40 fps or so more.
Robert J Stokes
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Re: 168 grain Sierra Tipped Match King
Less humidity and higher altitude?
I'm soft and I don't care.
- Corjack
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Re: 168 grain Sierra Tipped Match King
Cool. May be a short barreled 308 in my future.
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Re: 168 grain Sierra Tipped Match King
For those who question the expense of a Blaser R8 and their accuracy!
Sharing this handload in the hope it will help others.
Sharing this handload in the hope it will help others.
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Re: 168 grain Sierra Tipped Match King
Wow that's very impressive, and good on you for sharing the load.
Life is too short to hunt with an ugly dog.
Hunt with a German Shorthaired Pointer.
Hunt with a German Shorthaired Pointer.
- Joe338ST
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Re: 168 grain Sierra Tipped Match King
WOW! That is impressive!
Joe
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
I hunt, I shoot, I camp, I fish. They are the great reset buttons in my life.
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Re: 168 grain Sierra Tipped Match King
What is the velocity of this round?Clewinhughes wrote: ↑Mon Jan 21, 2019 1:00 am For those who question the expense of a Blaser R8 and their accuracy!
Sharing this handload in the hope it will help others.
From the amount of vihta 140 powder and coal you are using I assume that the velocity is a bit low,somewhere maybe below 750 m/s. If I have to guestimate I would say it will be something like 720 m/s.
Best regards,
Jordan
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Re: 168 grain Sierra Tipped Match King
Ha - If only I new the velocity - been waiting two and a half months for my LabRadar to be returned from the UK importer after it stopped working. I expect 720 m/s is about right, I'll let you know when I get to measure them - need that for my ballistics calculations!
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Re: 168 grain Sierra Tipped Match King
Finally got my LabRadar back and the average velocity for the above hand loads are 2547 FPS or 777 M/S.