03-12-2022, 04:54 PM
I’ve been fighting with a similar problem with a 22 inch barrel with a rifle +2 configurations. I have sent my barrel back to the OEM they can find nothing wrong, as it cycles with the factory ammo but on my reloads using 87 Vmax is with a full load of varget it will not cycle. I can get it to work with 87 and heavier bullets with B3L-c2 and cfe 223. I have been contemplating opening up the Gasport a bit to try to get it to improve. I have tried A mil spec rifle lower using a Sprinco Greenspring, a carbine lower using a normal buffer, and a valtor A5 down to a H0 weight. I have Even tried 2 adjustable and 1 fix gas block. Of the three gas blocks the suplitve worked the best. With the valtor combo working the best.