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6.8SPC-Smash or pass??

6.8 recoil is just a bit more than .556. Sometimes with a well tuned rifle, the 6.8 is not noticeable harder recoil at all. But most rifles feel like maybe 5-10% additional recoil.

Whereas an AR-10 in .308 feels like about a 2x increase in recoil, and in a much larger package.

The 6.8 round is also highly optimized for shorter barrels in the 11-16” range.

The energy on target as somebody mentioned is noticeable higher on steel than .556.

Especially if you reload, as there is a large selection of high quality projectiles available. If you dont reload, you can still stay in high quality expanding, bonded, or all brass expanding projectiles with a little work to order when available.

Just generally stay away from factory Remington ammo in 6.8, and be sure the barrel/chamber of the rifle is the spec II chamber.
 
Great round for kids too.

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I have a 6.8. First question for folks is always do you reload? or what is your price tolerance for ammo? any interest in shooting suppressed/subsonic?

IMHO it's a great AR platform hunting round. Similar to 300blk supers, but with less drop if you plan to shoot middle range (200+).

Initially there was some screw ups with the SAAMI specifications for the chambers (hence the "spc II" chambers) that gave it a bad rap. But for the size of the round it's got solid weight behind it. If you are only shooting supers it's a bit better than the 300bo, but with blackout you have the option to shoot subs as well (at least it's easier to shoot subs, I'm sure someone has been shooting 6.8spc subsonic).

biggest disadvantage is needing a new bolt and somewhat picky about magazines (you need specific 6.8spc magazines and the Magpul 6.8mag only work in the LWRC Six8 lower). Brass isn't that hard to find.

smash if you are OK with these things.
 
6.8 recoil is just a bit more than .556. Sometimes with a well tuned rifle, the 6.8 is not noticeable harder recoil at all. But most rifles feel like maybe 5-10% additional recoil.

Whereas an AR-10 in .308 feels like about a 2x increase in recoil, and in a much larger package.

The 6.8 round is also hi guyghly optimized for shorter barrels in the 11-16” range.

The energy on target as somebody mentioned is noticeable higher on steel than .556.

Especially if you reload, as there is a large selection of high quality projectiles available. If you dont reload, you can still stay in high quality expanding, bonded, or all brass expanding projectiles with a little work to order when available.

Just generally stay away from factory Remington ammo in 6.8, and be sure the barrel/chamber of the rifle is the spec II chamber.
AR Performance recommends telling them or him if you are going to shoot Remington ammo so he can enlarge the gas port. Personally I haven't had a problem with Remy ammo in my builds but I only used AR Perfomance in 3 or 4 builds and didn't have any issues.

The barrel length really doesn't benefit on length like a .223 so you have another point there. That's a plus when weighing your options on a SBR or pistol length gun.
 
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