Just picked up a couple AW mags with HRD gear kits to feed 6BRA through a bighorn TL3. Untouched it fed about 50/50. Sometimes the bolt goes over the top of the round and picks it up about halfway down the case body causing it to jam. I figured if I could open up the feed lips a little the round would sit higher and would have no problem getting picked up, but after tweaking with the feed lips for a bit and even the follower spring nothing seems to be changing. Anyone have a fix?