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New SSA 6.8SPC Barnes 85gr TSX - 3000FPS with Combat Load:
This round was just released this morning and is sure to be popular with the high velocity.
3,000 FPS Combat load, 16" barrel SpecII chamber
2,900 FPS Commercial load
2,850 FPS ,Combat load, 10" barrel




www.ssarmory.com
 

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The only issue I see with any 3,000 fps load of any caliber is, its a barrel burner.

Thats my only issue.

Yes I know barrels are the most expendable part of a rifle, but I like to keep things under 2,950 for my own personal firearms.

Its just my little quirk I have I guess.

John
 

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it sounds zippy to me and mikey likey zippy rounds
 

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J.Boyette said:
The only issue I see with any 3,000 fps load of any caliber is, its a barrel burner.

Thats my only issue.

Yes I know barrels are the most expendable part of a rifle, but I like to keep things under 2,950 for my own personal firearms.

Its just my little quirk I have I guess.

John
I don't think it will be too much of an issue, especially with the chrome lined barrels.
 

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+1 on barrel burner.....
Specially if you got a SS matched barrel, but doesnt mean i wont shoot couple boxes to try it ....Question who tried this already?
those it have the new 6.8 ssa brass? or no..........i love reloading you can down&up load what ever you want
 

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Actaully it is less or no more then any of the other rounds. You have to remember that SSA only uses one powder for all 6.8 loads. Normally with lihter bullets you use faster hotter burning powder and that is why there is increased throat erosion. This is of course because a lighter bullet will be farther down the barrel sooner and we tend to us a faster powder to maximize the performance from this. With SSA ammo its the same powder now more of it but that same powder is also exposed to more barrel surface are meaning less erosion. Also with the lighter bullet th powder is actually burning slower as there is less pressure to move the bullet compared to a heavier bullet so there is less heat concentrated as well. Further the heavier the bullet the more it wears on the leading part of the rifling.This is why faster twist barrel's throats wear out quicker as the bullet sides a bit when it first hits the sharper angle. Now there maybe more port erosion as there is more powder going down the barrel with the bullet but the middy instead of carbine port location helps greatly with this.
 

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J.Boyette said:
The only issue I see with any 3,000 fps load of any caliber is, its a barrel burner.

Thats my only issue.

Yes I know barrels are the most expendable part of a rifle, but I like to keep things under 2,950 for my own personal firearms.

Its just my little quirk I have I guess.

John
Sir,

Do you shoot 5.56 military ball or even the watered down civilian version? If so, you're shooting ammo that shoots over 3000fps (M193 spec is 3200 fps +/- 50 fps, M855 is 3050 fps +/- 50 fps. I haven't heard any complaints about short barrel life in even a non-chromed 5.56 barrel, let alone a chromed one. Even the commercial 223 loads normally are faster than 3000fps.

What are you basing your opinion on to use such a hard and fast rule? :)
 

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billclo said:
J.Boyette said:
The only issue I see with any 3,000 fps load of any caliber is, its a barrel burner.

Thats my only issue.

Yes I know barrels are the most expendable part of a rifle, but I like to keep things under 2,950 for my own personal firearms.

Its just my little quirk I have I guess.

John
Sir,

Do you shoot 5.56 military ball or even the watered down civilian version? If so, you're shooting ammo that shoots over 3000fps (M193 spec is 3200 fps +/- 50 fps, M855 is 3050 fps +/- 50 fps. I haven't heard any complaints about short barrel life in even a non-chromed 5.56 barrel, let alone a chromed one. Even the commercial 223 loads normally are faster than 3000fps.

What are you basing your opinion on to use such a hard and fast rule? :)
As he wrote before:

J.Boyette said:
Paulo,

You very well could be right.

Like I posted, its my little issue with any caliber thats all.

John
 

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There is less bullet to bore contact with the barnes because of the bands therefore less friction = less heat compared to a fully jacketed projectile. Also barnes uses a nearly pure copper alloy in their bullets = softer compared it to a 95-5 or 90-10 jacket.


Art
 

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kalwasart said:
There is less bullet to bore contact with the barnes because of the bands therefore less friction = less heat compared to a fully jacketed projectile. Also barnes uses a nearly pure copper alloy in their bullets = softer compared it to a 95-5 or 90-10 jacket.


Art
Hey Art


What is the Sec Density of this bullet?

Got a bud whose ask me this on another forum
we were discussing your ammo..

thanks

doc
 

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Its low as its directly tied to weight

The formula for sectional density is weight( in pounds) of the bullet divided by the diameter (in inches) squared.

Bullet is actually .276 in diameter

1 grain = 0.000142857143 lbs

85 grains = 0.012142857155 lbs

0.276² = 0.076176

0.012142857155 / 0.076176 = 0.159


85 gr TSX Sectional Density= .159
 

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Your welcome. When you do get them let us know how they do. Even if you don't have a chrono etc just groups and your opinion is always welcome if you do all the better.
 
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