I have a correctly installed barrel into an upper. My problem is where the feed ramps of the barrel meet the feed ramps of the receiver, there is a small ledge that bullets get caught on. It happens with any bullet weight, and several brands of mags. I am running a standard carbine buffer. It seizes up the action and least once per mag. I was wondering if anyone has had any experience with this, and if they think I should take the gun to a gunsmith for him to blend the ramps to make it so they work. Anyone have any suggestions?

Blend with a dremel or chainsaw file, then polish.

I have had zero problems with e-lander mags.

yeah I used CProducts, ASC, and Elander all with the same issue. Ill have to see if I can have my gunsmith do it.

Edit: got the barrel replaced by faxon, they have great CS.