Quote Originally Posted by MCol View Post
Getting good results out of 24gn of H335 with 55gn hornaday fmjbt’s out of my 20” AR however I’m wondering if I should change my seating depth, currently seating at 2.20, I’ve got the 5.56 chamber and I’m wondering if the jump to the lands is hurting me.


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It could be. My pet load for my AR with a 5.56 Nato barrel that is 16" with a 1:9 twist is 24.6gns of H335 at a OAL of 2.250. I tried seating depths from 2.200 up to 2.260. 2.250 gave me the best results.

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