11-19-2012, 07:27 PM
Welcome. What ammo are you using? If it's the Wolf 123gr SP, that will do it. Try Hornady 123gr AMAX, or Wolf 120gr MPT.
Does the bullet tip get stuck in the breech, without making it into the chamber? I would also look at the ejector if the ammo isn't Wolf 123gr SP. If you radius the edge of the ejector, it will allow the cartridge head to slip into the bolt face. If a sharp ejector face is present, it can hang up the head of the case, and cause the exact malfunction you describe.
Since you tried different lowers, and different mags, I'm leaning to the ejector as the culprit.
Does the bullet tip get stuck in the breech, without making it into the chamber? I would also look at the ejector if the ammo isn't Wolf 123gr SP. If you radius the edge of the ejector, it will allow the cartridge head to slip into the bolt face. If a sharp ejector face is present, it can hang up the head of the case, and cause the exact malfunction you describe.
Since you tried different lowers, and different mags, I'm leaning to the ejector as the culprit.