Cat,
If your Cobra is even having feeding problems with ball ammo (forget hollow points) then it is time to get a professional involved.
T. Mark Graham at Arizona Response Systems has done excellent work for me in the past. He did the assembly and finishing work on my FN FALs -- American T48 replica, Israeli Light Barrel replica, Austrian StG 58 replica, German G1 replica, and Imbel FAL w/bipod. Mark stands by his work and gets it right.
You can e-mail him at
[email protected] or here's his address and phone number: Arizona Response Systems, 16014 West Remuda Drive, Surprise, AZ 85387, ph. 623-556-8056. Call him first to set up an appointment -- he's usually buried with work, so he really appreciates that you coordinate your visit with him.
Mark's ex-Army Special Forces and knows his weaponry. I highly recommend him if any other folks here need some gunsmithing done. One thing: Mark's usually booked solid with work, so you ought to visit his website at Arizona Response Systems to check on his work load to get an idea of what's already in the pipeline.