
Originally Posted by
Iraqgunz
And they are way overgassed. We did some testing in GA with a midlength being used by a police officer.
I ran with various 5.56 ammo using an H3 buffer and blue Springco. It also ran with the Vltor A5H4 and green Springco spring.
My MKI MOD0 eye ball indicated that is was larger than the standard .076.
If you're selectively going to follow the TDP, and target a rifle for the $700 out the door audience, they've made exactly the right call in my book - run a 1:8 twist and a huge gas port so it handles the widest variety of mediocre ammunition that your target audience is likely to feed it.
Anybody willing to feed a rifle a steady and exclusive diet of 5.56 pressure quality brass ammunition isn't going to hesitate to just buy the 6920 or equivalent rifle - S&W did a good job of evaluating their market.
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