Ok, need a little help. Built my grendel from ground up. First time out to test fire and had failure to extract, charging handle very hard to pull back. 3 rounds and I aborted effort. Research lead me to think it was an undergas issue and case was swelling causing it to be stuck in chamber. Bought gas block alignment tool and reinstalled my Jp adjustable gas block and found that it was slightly off so thought that was problem. Headed to range today with adjustment screw on block out 1 turn. Same issue. Took another turn out of screw and same issue. After 1st FTE episode I removed firing pin at home and was able to manually charge and eject live rounds no problem. Any ideas? Thanks in advance.
20" odin barrel
JP bolt
Fail zero BC
hornady black ammo
20" odin barrel
JP bolt
Fail zero BC
hornady black ammo
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