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Charmingly unsophisticated |
I've never thought about building an AR for 6.8 SPC so I'm hoping some of you can clue me in to the pros/cons.
I'm not far into my build, and I suspect I could easily go either way at this point. I've got a multi-caliber marked lower and a stripped upper. No bolt or barrel yet. Right off the bat, I assume cost is the biggest "con"....6.8 is PRICEY!! What is there to make it worthwhile, other than novelty? _______________________________ Poppa Chester is proud of you. |
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Well to start, what do you want to do with the rifle, if it is purely a plinker go with .223.
If you already have a 5.56/223 rifle then go with the 6.8-you will not be sorry. You really can hunt any animal up to a Caribou with it and the right bullets, and I have seen pics. of people shooting them as well. It is a perfect deer, pig round with minimal recoil for the actual "killing power" it delivers. It is perfect for kids or women to learn to hunt with the AR platform and not be overwhelmed with recoil. If you really want to shoot high volume you will learn to re-load. Silver State and Hornady make great loaded ammo and all the components that both companies use are available as a reloader to duplicate their loads. Sierra, Hornady, Barnes, and Nosler make all the bullets and they are great-no real duds at all out there from 90-115 grain. It is easy to re-load and very forgiving. Make sure to do your research as alot of people make barrels and uppers, get the 1/11 twist now as it is the standard, and SPCII chamber. EVERY person who has shot my 6.8 more than a couple rounds has bought one afterwards  |
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If you don't reload and/or find the ammo too expensive then I'd simply skip the idea. Otherwise I cannot think of any good reason not to build one.
I've had mine awhile and REALLY enjoy it. I don't know if you hunt but the 6.8 really expands most peoples options in this regard. I don't know if the 6.8 is supposed to be inherently accurate but my particular gun outshoots my 5.56 AR with every ammo I've tried so far. ..and like BullittBoy said, everyone who has tried mine wants one.  |
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Well, I have decided to go the 6.8 on a couple of rifles. I just want to step up to a rifle that has more punch. I like the .223 just fine. But I do not currently like the semi offerings in 308 and their prices if I do like the rifle. So the 6.8 makes sense to me. I do not have them together yet but will in a month or so.
"Practice like you want to play in the game" |
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I've been itching for one... a friend of mine decided to build one and I've been reading/researching the round, load recipes, and prices.
Biggest problem for me is finding a cost-effective upper that I will be happy with. I think my next "save up" purchase, well down the road, will be a Noveske. www.joshua-davis.com/ The Free State Project "If somebody says there ought to be a law there probably ought not." - Penn Jillette |
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Charmingly unsophisticated |
Is my assumption about a stripped upper correct? It's the barrel and bolt I need to make sure is 6.8, right? I can even use USGI mags, they just don't load to 30, right?
_______________________________ Poppa Chester is proud of you. |
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I would advise against USGI mags. Just get 6.8 mags...aluminum GI mags may flex outwards and create issues...all of my 6.8 mags are steel. CProducts makes inexpensive ones, PRI and Barrett also make mags.
I did not build my own upper as I bought one of these - http://www.titanarmory.net/id69.html the BCG and barrel are specific to the 6.8. |
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From what I understand, you should take care to get an upper with M4 feedramp cuts just because it is a bigger bullet and the larger/longer feed ramps will help you out a bit. And I second the suggestion for a dedicated 6.8 steel mag. That being said, PMAGS have been reported to work ok loaded to 10 rounds... but why bother with the big mag and only 10 rounds unless it's .458 SOCOM. www.joshua-davis.com/ The Free State Project "If somebody says there ought to be a law there probably ought not." - Penn Jillette |
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Newbie here, so please forgive my "inexperience" question: I have an M&P and would like to have a "heavier" rifle. Can I convert, and what do I need to convert this to 6.8? Thanks.
========================================== Just my 2¢ ____________________________ Clowns to the left of me, Jokers to the right ♫♫♫ |
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Just pick up a 6.8 upper with 6.8 bolt and carrier and swap it out. ...and get some proper 6.8 mags...that's all. _____________________________________ A dangerous lag in human development exists between when your body is big enough to get hurt and when your brain knows you shouldn't be running as fast as you can with your head turned around. |
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Hey look! We are back to the .276 that should have been the caliber of the m1!
I don't get the allure of the 6.8. I live in a state that doesn't allow semi autos for hunting bigger game. Plus I don't hunt. I can get 223 anywhere (when it's in stock) but I've seen maybe 12 boxes of 6.8 total in the 5 shops I frequent. The reloading components have got to be expensive, so I just don't get it. 223 or 308. It just seems to be a choice one must make. This trying to find middle ground shit that will satisfy all, while giving up nothing is one of the many reasons America is stumbling so badly everywhere. Just accept the limitations of what's offered and deal with it. You can't have everything! |
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Well, andronicus, it was developed as a more efficient way to put smelly, bearded guys in the dirt at 0-300m in combat (without moving to a whole new weapon system). The further away your needs are from that, the less is will make sense.
It has turned out to be a great hunting round in an ergonomic, easy to shoot rifle as well...but I don't hunt, so that wouldn't matter to me either. The best anti-personnel ammo in 5.56 cost the same as 6.8 ammo (about $1 per rd nowdays) and loading for it wouldn't be much more expensive than loading 5.56. The only thing stopping me from SBR-ing my lower and getting a short 6.8 barrel is that I don't like LMT's use of 1:10 twist and the SAAMI chamber....I have an MRP. “People have to really suffer before they can risk doing what they love.” –Chuck Palahnuik www.fitkettlebell.com |
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Now after having a 6.8 SPC AR15 I think it is the best round for self defense out of a AR15 platform! If it wasnt for price of ammo I would have only 6.8 ARs. I wish the military would adopt the round so we can have cheaper ammo but its not going to happen any time soon.
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Plinking and varmints the 5.56 is the king. The ability to go down to .22LR really is cool.
If the gun is to be used for hunting get the 6.8. That will get you past most state laws requiring a larger than 6mm bullet. 5.56 makes the 6.8 it's bitch when it comes to long range trajectory so if your game is longer than 400 yards get the 5.56. 5.56 is more than enough for self defence especially with hollow points. The 6.8 does hit harder and can go through more things people tend to hide behind when they get shot at. If you ever have to use it in the last example god help you on your dark day. ___________________________________________________ I am not super smart just above average at goolge. |
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+1 BB just saved me a bunch of typing.
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Nope, still don't buy it. I'm hearing about the failures of the 223 that warrant it's replacement. But not much about it's many successes around the globe in more than 40 years. Outside of the US, it has been adopted by the Israelis and South Africans, two countries that have seen serious conflicts, not to mention a plethora of other nations. And they all continue to use it. The British SAS use the m16 system over the SA80. But both are 223s. The Germans like the G41, and the H&K 416 is mainly used in 223.
If a perfect caliber is wanted, it was made over 100 years ago. It is the 7mm Mauser. And it will do it all. |
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Well, world wide adoption of 5.56mm is more of a logistics, doctrine, and standardization issue. It's the very same reason why Israelis, South Africans, Germans, British were using 7.62mm that we deemed not good enough for assault rifles. Mostly because we shoved 7.62mm on NATO as the leader, and companies like FN and HK made FAL and G3 as a result of it, and the rest of the world bought those rifles. So, "World wide use" don't mean anything close to "good." Police in many countries use 380ACP, but that does not mean it's a best pistol ammo. If you want your AR-15 or similar rifle to shoot something more powerful than 5.56mm, there are very few feasible options. And, 6.8mm is a good alternative. If you don't particularly want your AR-15 or similar rifle to shoot something more powerful than 5.56mm, then of course you won't see a need for it. |
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Of course you don't see the allure of 6.8mm SPC. People don't desire 6.8mm SPC for any of the reasons you've mentioned.
If people are trying to get a 7.62mm performance out of 5.56mm or 5.56mm performance out of a 7.62mm then you have a point. But, if the need is right in the middle of 5.56mm and 7.62mm then neither ammunition suits the need, and going to a new caliber makes perfect sense. No, 6.8mm SPC's purpose is NOT to satisfy all. It's made with very specific purpose in mind. |
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posting without pants |
Pros:
Good round. Longer range and bigger hole. Good ballistics. Very accurate. Cons: Expensive, even if you reload compared to 5.56. Harder to find ammo. If, god forbid you are ever in an emergency situation, you will be able to scrounge WAYYYYY more 5.56 ammo than 6.8. My thoughts: If you are buying a range gun and have the disposable income to do so, than it will be a sweet gun. If you really want utility out of it then you better stock some ammo. If i already had my 5.56 needs filled with other AR's or other rifles then i would get it just for the "fun" factor. Either way, whatever you get post us some pics. Kevin Karma? Karma is just justice without the satisfaction. |
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Charmingly unsophisticated |
LOL Kevin, it'll take awhile. I'm piecing it together as funds allow. I'm thinking of maybe an SPRish type rifle. I've assembled an M16A2 clone and a 16" middy, so this will be something inbetween. And for a change, I'm going to keep it.
Everybody else, thanks for the input. I think I'll stick with what I know and do it in 5.56. _______________________________ Poppa Chester is proud of you. |
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