Originally Posted by jax13
The lad I shoot with picked up a box of factory load 36gn grenades for the .223 and they are just silly.
Group as well as 55gn vmax through his 1:8 t3 and doing in excess of 4100fps over the chrono (and chucking flame out the end of the mod which says to me there may be unburnt powder going to waste too)
Black Hills only claim 3,750fps and i presume his T3 is a 20" barrel, i would check your chrono if i where you.
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