I am currently using RCBS 15502 neck sizing die set for reloading 308 Winchester. On IVI and Remington brass it does a decent job for resizing as far as neck tension. The bullets in Winchester brass on the other hand always seems loose after resizing. I am looking on reccommendations for a floating bushing resizing die and bushing set (seen some on the net that go up in 0.001" incriments.) Any help would be great.