I have a mk18 desert eagle in 50ae and sometimes I get failure to feed. Sadly I don’t have a picture of the issue but when it happens, it’s always in the same spot about 5mm or so from slide going into battery. Even if I try to push the slide into battery it’s feels like it’s jammed. To clear it i would need to drop magazine and rack the slide back and round will fall out with no issue. I thought maybe limp wristing it but it’s the consistent spot. Only one magazine at the moment and using flat nose underwood ammo. Any suggestion would be greatly appreciated