What does it take to convert 223 to 6.8?

Daltex1 · Post by **Daltex1** » Mon Sep 03, 2007 3:59 pm

looking to see if its possible and what all it would take to make my S&W MP15T AR 15 IN 5.56 (223) to the 6.8. Would I better to buy a new gun in 6.8 or could I switch out parts? I knew when I bought the dang thing I should have gotten the 6.8 any help is greatly appreciated.

nitrogen · Post by **nitrogen** » Mon Sep 03, 2007 4:07 pm

New upper and new or converted mags. Uppers for this are about $400-$500 bux for mid quality uppers.

EDIT: Youc an actually jsut rebarrel, but this is not a trivial operation. You'd need a barrel wrench, a upper barrel block and a winch.

If youre looking for something comprable to the M&P upper, it's about double that.

Why exactly are you looking to go to 6.8?

Daltex1 · Post by **Daltex1** » Mon Sep 03, 2007 4:22 pm

would like to have bigger bullet, thinking about using it for deer hunting this year, the 223 seems too small.

nitrogen · Post by **nitrogen** » Mon Sep 03, 2007 4:28 pm

6.8 is on it's way out, from what I know, peopel aren't making it anymore. You might end up spending a lot more for ammo, and parts might be harder to come by in the future, since the millitary isn't going with it.

Unless you plan on doing a lot of long distance shooting, I honestly don't htink it's worth it, but that's just me.

AFJailor · Post by **AFJailor** » Mon Sep 03, 2007 5:00 pm

.308 > 6.8 that is all.

RubenZ · Post by **RubenZ** » Mon Sep 03, 2007 5:22 pm

I wouldn't waste my time seriously. I was about to get a 6.8 upper and then realized what for? I mean ya you can use it for Deer Hunting, but its not really that great for that either.

If you want an AR-15 type gun with a bigger bullet just go AR10 (.308) that would be better. But be carely, its heavy :)

shootthesheet · Post by **shootthesheet** » Tue Sep 04, 2007 9:52 pm

Ammo and accuracy are the key with .223. I have taken deer and hog both. I want a .308 but the .223 is fine within 200 yds. for now. If you want something larger you can get a new or used deer rifle for less than you would a conversion upper. Probably not the best but suitable.