The 6.8 SPC is interesting. Noticed twist rates of 1:9, 1:10 & 1:11, yet ammo was all 110 to 120. Is faster twist (1:9) better? Also, how does this compare to a .300 BLK at around 100 yards max?

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Randy I. · Answer

here is a good article compairing the 6.8 spc and the 300 blackout https://www.80percentarms.com/blog/-68-spc-vs-300-blackout-which-is-better-for-ar15-/

James G. · Answer

Hi Mark and welcome. A 1 in 10 twist rate would be ideal for 100gr through 140 grain bullet weights. Cheers, stay safe and enjoy!

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The 6.8 SPC is interesting. Noticed twist rates of 1:9, 1:10 & 1:11, yet ammo was all 110 to 120. Is faster twist (1:9) better? Also, how does this compare to a .300 BLK at around 100 yards max?

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The 6.8 SPC is interesting. Noticed twist rates of 1:9, 1:10 & 1:11, yet ammo was all 110 to 120. Is faster twist (1:9) better? Also, how does this compare to a .300 BLK at around 100 yards max?

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