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Old June 16, 2005, 03:42 PM   #1
mathman
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What does the 6.8 SPC do that the 243 Winchester doesn't?

The .243 carries a little bit more velocity and a little bit more energy than the 6.8 SPC, especially at longer ranges...so what gives?
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Old June 16, 2005, 03:59 PM   #2
itsmike762
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I could be wrong but I believe the 6.8 OAL is the same as the 5.56 so it will work in the M-16 M-4 format.
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Old June 16, 2005, 04:29 PM   #3
mathman
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Oh...that would be a good reason to like it...
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Old June 16, 2005, 04:32 PM   #4
Vic303
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Yeah, but then Armalite did make the AR10-T in .243 too...
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Old June 16, 2005, 05:14 PM   #5
smince
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You can just make basic changes to the M16 package (barrel, mags, springs, bolt face,) and upgrade to a MUCH better power claass. Saves tax money for your Congressmen to spend on something totally useless.

You have to change the whole gun for .243.
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Old June 18, 2005, 04:25 AM   #6
jd1967
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The .243 is basically a 6mm/08 while the 6.8 is pretty much a .277/.30 Remington which was developed after there wre functioning AR-15's using a 6.5 PPC (aka 6.5 Grendel).

Since the .243 requires new receiver, magazine, upper and guts; the real question is what does the 6.8 SPC do that the 6.5 PPC/Grendel doesn't already do better? The answer: well some are that the 6.8 SPC gets to be invented by government employees and save the embarrassment of admitting that civilians came up with it and the slippery slope (from some people's point of view) taht that would entail and it enriches Remington instead of that little company that apparently nobody in DC likes.

I'd like to see what you could do with a 6.5 bullet and the once-imagined 1 3/4" PPC case. I'm sure it would not shatter the foundations of the earth, but I'd just like to know what it would do anyway.
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Old June 18, 2005, 06:50 AM   #7
Big-Foot
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Ok members of the Cult of the Grendel it's time to put up, show me some gelatin tests. I have a hunch that it has a real long neck before tumbling and thats why they won't post them. A match bullet making a 6.5mm hole straight through a bad guy would be less effective than the 5.56 at close range and only be slightly better at long range. No theorys or endless posting, it's been a year and a half since the release, show me the pics.
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Old June 18, 2005, 02:46 PM   #8
Jseime
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a .277 bullet can be heavier than a .243 bullet and still only take up the same amount of space lengthwise
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