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Discussion Starter · #1 · (Edited)
Welcome to the true home of the 6.8- the good points

Welcome to the true home of the 6.8

Members, I would like to make a welcome to the 6.8 and 68forums post that highlights the good points in a quick easy to find post or section. The mods or someone that can write can take over anytime, it's just an idea to help those that come here seeking info or facts since there seems to be so much bad info and so many groups who see the 6.8 as a threat. I would like to show all of the hunting bullets available. Show all of the factory ammo available and the specs. and maybe some comparisons to other calibers factory ammo trajectory and energy as a reference since that is usually the most exaggerated claims, the 5.56, Grendel and 300 seem to be the ones most compared to.

This will take a while to put together then I'll come back and erase all of this. If anyone has ideas or wants to add info please do. If anyone wants to take over please do LOL I'll be back with more as time allows.

I'll start by listing real hunting bullets up to 130gr since that should be the limit for cartridges with a capacity of this size.- http://68forums.com/forums/showthread.php?22752-Picture-of-36-6-8-SPC-Bullets-w-BC-amp-Length
80grHV GS Customs
85gr Barnes MPG
85gr Barnes TSX
85gr Nosler E Tip
90gr Speer TNT
90gr Sierra varminter
90gr Gold Dot
95gr Barnes TTSX
99gr HV GS Customs
100gr Nosler Accubond
100 Speer Hp
100 Hornady SP
100gr Hornady GMX
100gr Rem SP
110gr Nosler Accubond
110gr Hornady Vmax
110gr Barnes TSX
110gr Barnes TTSX
110gr Sierra Prohunter
115gr Fed Fusion
115gr Rem Corelokt
120gr Hornady SST
130gr Speer Hotcor
130 Rem corelokt
130gr Sierra SPBT
130 Federal Fusion

AMMO-
Hornady
120gr SST
110 Vmax
100gr GMX
110 HPBT
110 HPBT-American Gunner
Federal
115 Fusion
115 Fusion American Eagle
90gr Fusion
90gr XM68
PPU
115gr HPBT
115gr fmj
Remington
115gr UMC
115gr
115gr OTM
SSA/Nosler
85TSX
85gr RRLP
85gr Etip
90gr Bonded
95TTSX
100 Accubond
110 Softpoint
110TSX
110 Prohunter
110 accubond
115gr OTM
S&B
110gr tipped(Vmax)
115gr fmj
90gr Bonded
Corbon
115gr BTHP-SMK
 

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Discussion Starter · #2 · (Edited)
From Hornady's website
6.5 Grendel 123 gr SST®




Test Barrel (24") Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2580/18182410/15862247/13792090/11931940/10281796/881
Trajectory (inches)
Muzzle100200300400500
-2.401.800.00-8.70-25.30-51.30 Note Trajectory is for a 24" barrel

Rifle (16" Barrel) Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2350/15082189/13082034/11291885/9711744/8311612/709

6.8mm SPC 120 GR SST®



Test Barrel (16") Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2460/16122250/13492050/11201862/9231685/7561522/617
Trajectory (inches)
Muzzle100200300400500
-2.402.200.00-10.50-31.10-64.00

300 Blackout 125 gr HP American Gunner®



Test Barrel (16") Velocity (fps) / Energy (ft-lbs)
Muzzle100200300
2175/13131932/10361707/8091504/627
Trajectory (inches)
Muzzle100200300
-1.503.900.00-15.90

7.62X39 123 gr SST® Steel Case



Test Barrel (20") Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2350/15082040/11361755/8411502/6161289/4541129/348
Trajectory (inches)
Muzzle100200300400500
-1.503.500.00-14.80-45.20-96.60

5.56 NATO 75 gr BTHP Superformance® Match™



Test Barrel (20") Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2910/14102675/11922452/10012240/8362039/6921848/569
Trajectory (inches)
Muzzle100200300400500
-2.401.200.00-7.00-21.00-43.40

That is no joke, the 20" 5.56 has 8" less drop than a 24" Grendel at 500yds. I wonder why they don't show the trajectory of a 16" Grendel going 200fps slower?
The 5.56 and 7.62x39 also puts more energy on target than the 300 BO. I'll bet that gets told wrong a few thousand times a day.

Text Font Line Diagram Parallel
 

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interesting

Very interesting data, if a person looking for a overall hunting/target round and was reading this the 6.8 would be hard to beat IMO. But if they're looking for cheap blasting ammo of course the AK round would the choice. I haven't checked but the Grendel is a standard AR platform right? Not an AR 10 receiver?
 

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Discussion Starter · #4 ·
Very interesting data, if a person looking for a overall hunting/target round and was reading this the 6.8 would be hard to beat IMO. But if they're looking for cheap blasting ammo of course the AK round would the choice. I haven't checked but the Grendel is a standard AR platform right? Not an AR 10 receiver?
Correct, the Grendel/264LBC works in an AR15.
 

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Add the 130 fusion to the hunting bullet list, they can be bought as pulls
 

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You have the S&B 110 PTS listed as a v-max, the bullet is not a varmint style bullet, it acts very similar to an accubond (as x-man notes in his expansion testing thread, and s&b describes it as a big game bullet)
Since its rumored that hornady makes this bullet for S&B , I would describe it more like a 110interbond
 

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Very nice! It was the availability of ammo that made me choose the 6.8 over the 6.5 Grendel. I think the 6.8 is an overlooked youth hunting round as well, very little recoil, plenty of power, and larger and heavier bullets than most of the other small bore choices. My son has been deadly with it.
 

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6.5 Grendel 123 gr SST®
Rifle (16" Barrel) Velocity (fps) / Energy (ft-lbs)
Muzzle100200300400500
2350/15082189/13082034/11291885/9711744/8311612/709

you should bold red the barrel lengths
 

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Welcome to the true home of the 6.8

Members, I would like to make a welcome to the 6.8 and 68forums post that highlights the good points in a quick easy to find post or section. The mods or someone that can write can take over anytime, it's just an idea to help those that come here seeking info or facts since there seems to be so much bad info and so many groups who see the 6.8 as a threat. I would like to show all of the hunting bullets available. Show all of the factory ammo available and the specs. and maybe some comparisons to other calibers factory ammo trajectory and energy as a reference since that is usually the most exaggerated claims, the 5.56, Grendel and 300 seem to be the ones most compared to.

This will take a while to put together then I'll come back and erase all of this. If anyone has ideas or wants to add info please do. If anyone wants to take over please do LOL I'll be back with more as time allows.

I'll start by listing real hunting bullets up to 130gr since that should be the limit for cartridges with a capacity of this size.- http://68forums.com/forums/showthread.php?22752-Picture-of-36-6-8-SPC-Bullets-w-BC-amp-Length
80grHV GS Customs
85gr Barnes MPG
85gr Barnes TSX
85gr Nosler E Tip
90gr Speer TNT
90gr Sierra varminter
90gr Gold Dot
95gr Barnes TTSX
99gr HV GS Customs
100gr Nosler Accubond
100 Speer Hp
100 Hornady SP
100gr Hornady GMX
100gr Rem SP
110gr Nosler Accubond
110gr Hornady Vmax
110gr Barnes TSX
110gr Barnes TTSX
110gr Sierra Prohunter
115gr Fed Fusion
115gr Rem Corelokt
120gr Hornady SST
130gr Speer Hotcor
130 Rem corelokt
130gr Sierra SPBT
130 Federal Fusion

AMMO-
Hornady
120gr SST
110 Vmax
100gr GMX
110 HPBT
110 HPBT-American Gunner
Federal
115 Fusion
115 Fusion American Eagle
90gr Fusion
90gr XM68
PPU
115gr HPBT
115gr fmj
Remington
115gr UMC
115gr
115gr OTM
SSA/Nosler
85TSX
85gr RRLP
85gr Etip
90gr Bonded
95TTSX
100 Accubond
110 Softpoint
110TSX
110 Prohunter
110 accubond
115gr OTM
S&B
110gr tipped(Vmax)
115gr fmj
90gr Bonded
Corbon
115gr BTHP-SMK
Thanks for the list and the link to the chart with the bullets and their statistics.

Do you or anyone have experience with the 130gr Accubonds, especially with 18" bbls.

It appears that the 110gr AB's are made from unobtainium, but the 130's are available.
 

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Discussion Starter · #11 ·
IMO the Nosler 130s are too long to load properly and fit in a 6.8 mag. Not sure about the long load mags CBB is selling.
 

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I have six boxes of the 140 grain Berger VLD's loaded by the old SSA. Hat tip to Art. I am not sure I even want to fire (all of) them.
 

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Further info on the S&B ammo:

the 110 gr PTS is made for S&B by Hornady per S&B website. http://www.sellierbellot.us/products/rifle

Hornady Plastic Tip Special: Sellier & Bellot combines the highest-quality brass, primers, and powders with the Hornady PTS polymer tipped projectiles for peak performance. The Hornady PTS features a polymer tip to reduce drag and improve aerodynamics for flatter trajectories and improved accuracy. Hornady PTS bullets differ from other plastic-tipped rifle bullets because they were designed to be a big-game bullet. The copper jackets used on the Hornady PTS bullets are thicker than the jackets used on varmint bullets, which aids in weight retention and assists in penetration deep into the vitals.

The S&B FMJ load is a 110 gr bullet, which does not show up when doing a search on S&B website as of today's date.
 

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I thought I read somewhere the PTS bullet was “fused” . ???
Excellent accuracy thru four rifles I personally have shot.
 

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One thing I noticed is that there are almost NO Nitrided 3R barrels out there other than ARP for either 6.5 or 6.8. That being said, most 6.5 Grendel uppers are going to be using 4 groove stainless which is the most common while there are quite a few 6.8 uppers running 3R Nitrided barrels from ARP (seems to be one of the choice brands for 6.8 users building their own uppers).

Adding another 60 to 75 FPS due to the faster shooting 3R nitrided barrel over a 4 groove stainless, the 6.8 is within just a couple of ft-lbs of 6.5 even at 500 yards just due to the barrel alone. Past that neither has enough velocity to reliably expand so what's the point of remaining super sonic to 1000 without expansion other than punching holes in paper (not to mention KE and momentum are less than a 9mm at those ranges....)? Sounds like a good plug for a long range paper puncher.

6.5 123gr SST in a 16" 4 grove stainless barrel nets 703 ft-lbs (1604 fps) @500 yds

6.8 120gr SST in a 16" 4 grove stainless barrel nets 619 (1524 fps) ft-lbs @ 500 yds (even this is still indistinguishably close to 6.5 G)

6.8 120gr SST in a 16" 3R Nitrided barrel nets 681 ft-lbs (1599 fps) @ 500 yds

Long range is better served by 6.5 Creedmoor or even better yet, .338 Norma Mag. which has been adopted by the US military as an intermediate support gun cartridge and I'm sure others will follow in that up and coming military cartridge.
 
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