Jefro, thanks for the reply so quickly. This is a brand new codymatic gun I bought from don jones aka cody conagher with all his slick trimmings, I first tried to contact him but couldn't get ahold of him this evening. Gun cycles and shoots phenomenal, he does some crazy nice work, I just think something goofy is up. It works 5 bullets like a charm, just acts like there is too much pressure to cycle properly after 6 in the tube. I took spring out and put back.....yes correctly and still same issue. I just didn't want to go cutting springs or nothing before I got some input. Even from the factory.....brand new it should have cycled the bullets no problem, I would think. It's like they got me a extra long or stiff spring.