AR-15 build verses buy

[Biggerhammer]

Their one shot stopping Antelope just shy of 700 yards with them(6x6.8)I'll have my 6.5x68 barrel here in the next couple days. I'm going to order a 6x68 barrel on the 15th and catch the 20% off "Shot Show" special.

[mountainman]

Chuckle

[Biggerhammer]

Frikn IPhone's!!!

[Heredoggydoggy]

BlackHole Weaponry fixed the 6.8 SPC by simply necking it down to 6.5. Might want to give their barrels a look. They also necked it down to .20 cal, .22, 6mm, 25 cal along with 6.5 and will be releasing a 6.8 necked down to .30 cal shortly. I know a bunch of guys that jumped on the 6.8 and then sold them all.

Yup.  I got a Black Hole 6mmX6.8 a while back, and I'm thinking about selling my 6.8.  Loaded ammo is available for the 6mmX6.8 SPC, but it's expensive!  I make my own, being the tinkerer that I am...

Have you wrung out your 6-6.8?
What are your thoughts on it?

Haven't wrung it out yet, but I did find out that you don't have to elevate very much from 100 yard zero to 300 yards.  It would be good for critters up to deer sized animals, but I think the 6.8 would have better knock down power.  I have to make up some more test loads for the 6mm, and check the zero.  A while back I thought I heard one of the turrets on the scope turning as I slid it out of the case.    Anyway, it's a good excuse to get out to the range again! 

Hee hee!  You guys type faster than I do!

[mountainman]

Yes Doggy, the 6x6.8 is an awesome round. Carl sent several barrels my direction early last year. Built it up, and sent a few down range! Mostly Tactical ammo stuff in their 58 grainers. My son ran up several handloads that were also phenominal shooters.maybe Carl hand picked it for me, maybe not. But in all the Blackholebarrels in various calibers ive had, the one in 6mm was above par! Even believe one of our members here will be playing with that one now and probably work up an even better load? We'll see!

[superdown]

I'll take a 5.56 and a 77gr MK over any 6.8 SPC load all the way out to 1K and I won't even mention how well the Grendel trumps both.

So i will readily admit that i am a novice when it comes to the ar platform but my question is based in terminal performance. What is the big turnoff with the 6.8 spc when most believe a human is much easier to dispatch than a deer? The reason i ask is this round seems to be popular with the hunting crowd?

[Jim the Plumber]

BlackHole Weaponry fixed the 6.8 SPC by simply necking it down to 6.5. Might want to give their barrels a look. They also necked it down to .20 cal, .22, 6mm, 25 cal along with 6.5 and will be releasing a 6.8 necked down to .30 cal shortly. I know a bunch of guys that jumped on the 6.8 and then sold them all.

Yup.  I got a Black Hole 6mmX6.8 a while back, and I'm thinking about selling my 6.8.  Loaded ammo is available for the 6mmX6.8 SPC, but it's expensive!  I make my own, being the tinkerer that I am...

Have you wrung out your 6-6.8?
What are your thoughts on it?

Haven't wrung it out yet, but I did find out that you don't have to elevate very much from 100 yard zero to 300 yards.  It would be good for critters up to deer sized animals, but I think the 6.8 would have better knock down power.  I have to make up some more test loads for the 6mm, and check the zero.  A while back I thought I heard one of the turrets on the scope turning as I slid it out of the case.    Anyway, it's a good excuse to get out to the range again! 

Hee hee!  You guys type faster than I do!

I have a 20" 6-6.8 AR-15 Black Hole barrel, just waiting on the associated reloading tools and bolt to arrive.
Have you tried any heavier bullets?
Mine is mostly going to be for coyotes and I will run it suppressed.
Yea, factory ammo at ~$80.00 for 50 is too steep for me.
I'll set my Dillon 550 up for it and feed the rifle that way.

[Heredoggydoggy]

I'll take a 5.56 and a 77gr MK over any 6.8 SPC load all the way out to 1K and I won't even mention how well the Grendel trumps both.

So i will readily admit that i am a novice when it comes to the ar platform but my question is based in terminal performance what is the big turnoff with the 6.8 spc when most believe a human is much easier to dispatch than a deer? the reason i ask is this round seems to be popular with the hunting crowd?

The 6.8 SPC was developed for the military as a round that would transfer over to combatants with little or no retraining, and offer more knock-down power than the .223 bullet.  It was based on the 30 Remington case, for the small head, requiring very little weakening of the bolt fingers.  It was never adopted by the military, but varmint hunters liked it, thus it didn't die off like most cartridges do when the military drops them.  I think the 6.5 Grendel was developed with the hopes that the military would adopt it, too, but they never did....

[Heredoggydoggy]

BlackHole Weaponry fixed the 6.8 SPC by simply necking it down to 6.5. Might want to give their barrels a look. They also necked it down to .20 cal, .22, 6mm, 25 cal along with 6.5 and will be releasing a 6.8 necked down to .30 cal shortly. I know a bunch of guys that jumped on the 6.8 and then sold them all.

Yup.  I got a Black Hole 6mmX6.8 a while back, and I'm thinking about selling my 6.8.  Loaded ammo is available for the 6mmX6.8 SPC, but it's expensive!  I make my own, being the tinkerer that I am...

Have you wrung out your 6-6.8?
What are your thoughts on it?

Haven't wrung it out yet, but I did find out that you don't have to elevate very much from 100 yard zero to 300 yards.  It would be good for critters up to deer sized animals, but I think the 6.8 would have better knock down power.  I have to make up some more test loads for the 6mm, and check the zero.  A while back I thought I heard one of the turrets on the scope turning as I slid it out of the case.    Anyway, it's a good excuse to get out to the range again! 

Hee hee!  You guys type faster than I do!

I have a 20" 6-6.8 AR-15 Black Hole barrel, just waiting on the associated reloading tools and bolt to arrive.
Have you tried any heavier bullets?
Mine is mostly going to be for coyotes and I will run it suppressed.
Yea, factory ammo at ~$80.00 for 50 is too steep for me.
I'll set my Dillon 550 up for it and feed the rifle that way.

That's what mine is, a 20" barrel.  I got the 1 in 9 twist, rather than the 1 in 10 so it would handle heavier bullets better.  I have heavier bullets, but haven't tried them yet.  I had the load data for the 58 grain V-Max's so that's what I tried first.  With a charge of IMR 8208 XBR they are nice!  I used a 6.5 Grendel die set, and a 6mm Hornady neck die, which I already had to neck down the 20 LBC brass, to make the cases, and turned a trifle off the necks to true them up.  All I had to get was a Hornady 6mm/243 bullet seating die.

[superdown]

I'll take a 5.56 and a 77gr MK over any 6.8 SPC load all the way out to 1K and I won't even mention how well the Grendel trumps both.

So i will readily admit that i am a novice when it comes to the ar platform but my question is based in terminal performance what is the big turnoff with the 6.8 spc when most believe a human is much easier to dispatch than a deer? the reason i ask is this round seems to be popular with the hunting crowd?

The 6.8 SPC was developed for the military as a round that would transfer over to combatants with little or no retraining, and offer more knock-down power than the .223 bullet.  It was based on the 30 Remington case, for the small head, requiring very little weakening of the bolt fingers.  It was never adopted by the military, but varmint hunters liked it, thus it didn't die off like most cartridges do when the military drops them.  I think the 6.5 Grendel was developed with the hopes that the military would adopt it, too, but they never did....

I know the history of the round although i do appreciate your input .  What i was asking was what is the performance deficit this cartridge apparently suffers?

[Jim the Plumber]

I'll take a 5.56 and a 77gr MK over any 6.8 SPC load all the way out to 1K and I won't even mention how well the Grendel trumps both.

So i will readily admit that i am a novice when it comes to the ar platform but my question is based in terminal performance what is the big turnoff with the 6.8 spc when most believe a human is much easier to dispatch than a deer? the reason i ask is this round seems to be popular with the hunting crowd?

The 6.8 SPC was developed for the military as a round that would transfer over to combatants with little or no retraining, and offer more knock-down power than the .223 bullet.  It was based on the 30 Remington case, for the small head, requiring very little weakening of the bolt fingers.  It was never adopted by the military, but varmint hunters liked it, thus it didn't die off like most cartridges do when the military drops them.  I think the 6.5 Grendel was developed with the hopes that the military would adopt it, too, but they never did....

I know the history of the round although i do appreciate your input .  What i was asking was what is the performance deficit this cartridge apparently suffers?

For it's intended purpose, there is none.

[Heredoggydoggy]

I'll take a 5.56 and a 77gr MK over any 6.8 SPC load all the way out to 1K and I won't even mention how well the Grendel trumps both.

So i will readily admit that i am a novice when it comes to the ar platform but my question is based in terminal performance what is the big turnoff with the 6.8 spc when most believe a human is much easier to dispatch than a deer? the reason i ask is this round seems to be popular with the hunting crowd?

The 6.8 SPC was developed for the military as a round that would transfer over to combatants with little or no retraining, and offer more knock-down power than the .223 bullet.  It was based on the 30 Remington case, for the small head, requiring very little weakening of the bolt fingers.  It was never adopted by the military, but varmint hunters liked it, thus it didn't die off like most cartridges do when the military drops them.  I think the 6.5 Grendel was developed with the hopes that the military would adopt it, too, but they never did....

I know the history of the round although i do appreciate your input .  What i was asking was what is the performance deficit this cartridge apparently suffers?

Oh, sorry.  I think the biggest deficit is the shortened case to fit into the m-16/AR-15 magazine.  A 270 Winchester would drive a heavier .277 bullet faster, and can shoot a 150 grain bullet.  115 grain is about max for a 6.8 SPC.  But still enough for the job it was meant to do.  As for FPS and energy numbers, someone else will have to answer that!

[Jim the Plumber]

That's what mine is, a 20" barrel.  I got the 1 in 9 twist, rather than the 1 in 10 so it would handle heavier bullets better.  I have heavier bullets, but haven't tried them yet.  I had the load data for the 58 grain V-Max's so that's what I tried first.  With a charge of IMR 8208 XBR they are nice!  I used a 6.5 Grendel die set, and a 6mm Hornady neck die, which I already had to neck down the 20 LBC brass, to make the cases, and turned a trifle off the necks to true them up.  All I had to get was a Hornady 6mm/243 bullet seating die.
[/quote]

Yup, same here, 9 twist. Just picked up 200+ SSA once fired brass, so I'll have plenty to work up loads.
I'm going to try the 87 Vmax and  87 Berger VLD.
You state you are seating with a 243 or 6mm die?  Is that the preferred way to seat the 6-6.8?

[mountainman]

JTP, give me a call at the shop on thursday. Will get you a deal on those 2 boxes you might like

[TheHunt]

JTP, give me a call at the shop on thursday. Will get you a deal on those 2 boxes you might like

Hey, My son is looking for an AR.  You have any Colts, Daniel defense, LMT...  He has money that is burning a hole in his pocket.