I bought a Springfield 1911a1 Loaded SS looked to be in great conditon had a few cosmetic scratches buffed out easily. It seems to not want to chambers rounds fully 4 out of 80 rounds hung half way . Thought it was Mag issues used them in another 1911 with no issues stripped and cleaned throughly not vey dirty .. the slide spring seemed weak so i ordered a OEM spec 16lb. spring should arrive any a few days Any thing else i should look for Cases are not marred no obiviuos scuffs on the slide or ramp took a fine mesh steel wool and polished the ramp and throat. Thanks in advance..